Bojidar Dimitrov’s K mount page is dead Long live the Pentax K mount page.

2018-05-10 Thread P. J. Alling
Boz, had been looking for someone to update and maintain his K mount 
page for several years, and looks like a group of German Pentaxians, I 
hadn't tried to access the page in a while and it took a bit of 
searching to find it here.


http://kmp.pentaxians.eu/

It looks like they're going to try to keep up with all new thing Pentax 
as there are new entries for the last 5 digital bodies released, though 
no detail pages for them yet.


I haven't read everything posted to the list for the last few months so 
this may be common knowledge, and it is old news, apparently the move 
happened last September, but it's new to me. I thought other people here 
might be interested.


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Re: Pentax K mount - to - EOS adapter orientation.

2017-02-24 Thread Gonz
These guys have pretty much everything:
https://www.mscdirect.com/webapp/wcs/stores/servlet/HomeView?storeId=10054=10001


On Fri, Feb 24, 2017 at 1:54 AM, Steve Cottrell  wrote:
> On 23/2/17, John, discombobulated, unleashed:
>
>>A local machine shop might be able to run up a one-off.
>
> Good point. Actually that's what I did 14 years ago. I just need longer
> screws to make it work.
>
> Any ideas where I would find 100% longer screws to fit the standard
> A*85/1.4 rear mount?
>
> --
>
>
> Cheers,
>   Cotty
>
>
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> ||  (O)  |Web Video Production
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>
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Re: Pentax K mount - to - EOS adapter orientation.

2017-02-24 Thread Collin Brendemuehl
> Any ideas where I would find 100% longer screws to fit the standard
> A*85/1.4 rear mount?

Perhaps a Pentax service center?
Or maybe special order from Grainger or Fastenal?


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Re: Pentax K mount - to - EOS adapter orientation.

2017-02-24 Thread Larry Colen



Steve Cottrell wrote:

On 23/2/17, John, discombobulated, unleashed:


A local machine shop might be able to run up a one-off.


Good point. Actually that's what I did 14 years ago. I just need longer
screws to make it work.

Any ideas where I would find 100% longer screws to fit the standard
A*85/1.4 rear mount?


If you still lived in San Jose...

http://www.mrmetric.com/






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Re: Pentax K mount - to - EOS adapter orientation.

2017-02-23 Thread Steve Cottrell
On 23/2/17, John, discombobulated, unleashed:

>A local machine shop might be able to run up a one-off.

Good point. Actually that's what I did 14 years ago. I just need longer
screws to make it work.

Any ideas where I would find 100% longer screws to fit the standard
A*85/1.4 rear mount?

-- 


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  Cotty


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||  (O)  |Web Video Production
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Re: Pentax K mount - to - EOS adapter orientation.

2017-02-23 Thread John

On 2/23/2017 3:13 PM, Steve Cottrell wrote:

Okay, here's an interesting question.

Pentax lens - to - other makes of camera adaptor rings. They're out
there. Cheapies off eekBay and Amazon, and one or two decent makes.

Here's the problem. My son uses the A*85/1.4 on his Canon C100 video
camera a lot. He loves the creamy bokeh and minimal depth of field it
offers, and it does look fantastic with HD video. I got a rubbish
adaptor for him to use because the special mounts I had made years ago
need longer screws and I can't be arsed to find the thread type and
figure out the size so he could use that.

Instead, the cheap adaptors work okay, except they don't work very well
at keeping the lens from rotating on the adaptor. The locking screws
basically don't. I've hacked and slashed to try and make them lock
better but without precision drill parts and miniscule tap and die sets,
it's a pain.

I got one of these:





and it's fine, but it exhibits one issue that all these bloody things do
- they orientate the lens so that what should be top dead centre of the
lens (at 12 o'clock) is out a bit and set at 2 o'clock. The reason for
this is to stop interference by the lens's actuator arm - it sticks out
into the throat of the camera and if not careful can damage said camera.

Except our A*85/1.4 doesn't actually have this actuator as I sliced it
off years ago!

You'd think that modifying an adaptor to be able to rotate the lens a
bit more round on the adaptor would be easy - far from it. The
tolerances are minimal in that flanges start interfering with each other
and once you get the damned thing lined up properly there's not enough
grip, or it wobbles and God knows what.

So we could use an adaptor that orientates the lens at 12 o'clock with
no fear of damage to the camera. Does anyone know of any adaptor that
allows this?


Dangerous asking you lot for suggestions. Sessoms you can keep quiet for
starters!




You wound me.

A local machine shop might be able to run up a one-off.

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Re: Pentax K mount - to - EOS adapter orientation.

2017-02-23 Thread Paul Stenquist
Shim stock. Available at good auto parts stores here in sizes from .001-inch to 
at least .005-inch. Cut to fit the lens flange until you've backed it up 10 
hours to the 12 o'clock position.

Paul via phone

> On Feb 23, 2017, at 3:13 PM, Steve Cottrell  wrote:
> 
> Okay, here's an interesting question.
> 
> Pentax lens - to - other makes of camera adaptor rings. They're out
> there. Cheapies off eekBay and Amazon, and one or two decent makes.
> 
> Here's the problem. My son uses the A*85/1.4 on his Canon C100 video
> camera a lot. He loves the creamy bokeh and minimal depth of field it
> offers, and it does look fantastic with HD video. I got a rubbish
> adaptor for him to use because the special mounts I had made years ago
> need longer screws and I can't be arsed to find the thread type and
> figure out the size so he could use that.
> 
> Instead, the cheap adaptors work okay, except they don't work very well
> at keeping the lens from rotating on the adaptor. The locking screws
> basically don't. I've hacked and slashed to try and make them lock
> better but without precision drill parts and miniscule tap and die sets,
> it's a pain.
> 
> I got one of these:
> 
>  adaptor-10704-p.asp>
> 
> 
> 
> and it's fine, but it exhibits one issue that all these bloody things do
> - they orientate the lens so that what should be top dead centre of the
> lens (at 12 o'clock) is out a bit and set at 2 o'clock. The reason for
> this is to stop interference by the lens's actuator arm - it sticks out
> into the throat of the camera and if not careful can damage said camera.
> 
> Except our A*85/1.4 doesn't actually have this actuator as I sliced it
> off years ago!
> 
> You'd think that modifying an adaptor to be able to rotate the lens a
> bit more round on the adaptor would be easy - far from it. The
> tolerances are minimal in that flanges start interfering with each other
> and once you get the damned thing lined up properly there's not enough
> grip, or it wobbles and God knows what.
> 
> So we could use an adaptor that orientates the lens at 12 o'clock with
> no fear of damage to the camera. Does anyone know of any adaptor that
> allows this?
> 
> 
> Dangerous asking you lot for suggestions. Sessoms you can keep quiet for
> starters! 
> 
> 
> -- 
> 
> 
> Cheers,
>  Cotty
> 
> 
> ___/\__Broadcast, Corporate,
> ||  (O)  |Web Video Production
> --
> _
> 
> 
> 
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Pentax K mount - to - EOS adapter orientation.

2017-02-23 Thread Steve Cottrell
Okay, here's an interesting question.

Pentax lens - to - other makes of camera adaptor rings. They're out
there. Cheapies off eekBay and Amazon, and one or two decent makes.

Here's the problem. My son uses the A*85/1.4 on his Canon C100 video
camera a lot. He loves the creamy bokeh and minimal depth of field it
offers, and it does look fantastic with HD video. I got a rubbish
adaptor for him to use because the special mounts I had made years ago
need longer screws and I can't be arsed to find the thread type and
figure out the size so he could use that.

Instead, the cheap adaptors work okay, except they don't work very well
at keeping the lens from rotating on the adaptor. The locking screws
basically don't. I've hacked and slashed to try and make them lock
better but without precision drill parts and miniscule tap and die sets,
it's a pain.

I got one of these:





and it's fine, but it exhibits one issue that all these bloody things do
- they orientate the lens so that what should be top dead centre of the
lens (at 12 o'clock) is out a bit and set at 2 o'clock. The reason for
this is to stop interference by the lens's actuator arm - it sticks out
into the throat of the camera and if not careful can damage said camera.

Except our A*85/1.4 doesn't actually have this actuator as I sliced it
off years ago!

You'd think that modifying an adaptor to be able to rotate the lens a
bit more round on the adaptor would be easy - far from it. The
tolerances are minimal in that flanges start interfering with each other
and once you get the damned thing lined up properly there's not enough
grip, or it wobbles and God knows what.

So we could use an adaptor that orientates the lens at 12 o'clock with
no fear of damage to the camera. Does anyone know of any adaptor that
allows this?


Dangerous asking you lot for suggestions. Sessoms you can keep quiet for
starters! 


-- 


Cheers,
  Cotty


___/\__Broadcast, Corporate,
||  (O)  |Web Video Production
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Bojidar Dimitrov's Pentax K-Mount Page

2017-01-30 Thread P. J. Alling
I don't know if any old hands were aware of this but for a while Boz has 
been looking for someone to edit and maintain his web page.  He has 
apparently moved on from Pentax.  I was looking for information on an 
obscure feature and visited his page.  There's an announcement that he's 
found a group to keep the site updated and hopefully relevant.   Just 
thought I'd pass the information on, since he no longer posts here.



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Re: FS Friday: Pentax K-mount lenses - update

2014-08-30 Thread Stanley Halpin
Several of the lenses are either sold or are under consideration by someone.
Gone for sure are the 12-24, 30, 60-250. Maybe gone are the 77 and 200 macro. 
So, still available are the following:

- DA* 16-50/2.8 $450
- FA* 24/2.0$450
- DA 40/2.8 Limited $250
- A 50/2.8 Macro$150
- K 55/1.8  $ 30
- M 135/3.5 $ 30
- DA* 300/4 $800

- FA 28-105/4-5.6   $ 50

- Sigma 150-500/5-6.3   $750

There are two real sleepers in the list which I had thought would be the first 
to go. The K 55/1.8 was a very early K-mount which would probably make a fine 
portrait lesson an APS-C body. Like the DA 55/1.4 which is on the market for 
about $770 more. The M 135/3.5 is a gem. The relatively slow 3.5 max aperture 
doesn’t seem so slow when “film” speeds of 3200-6400 provide decent results.

stan

On Aug 29, 2014, at 12:59 PM, Stanley Halpin s...@stans-photography.info 
wrote:

 I’ve decided to go ahead and sell off much of my APS-C K-Mount equipment and 
 take the plunge with a 645 system.
 
 ...
 
 [See separate email for a listing of bodies and accessories for sale.]
 
 All items above are in used but good condition. Most in original boxes with 
 pretty much all original contents.
 All items have been valued members of my regular equipment mix. Time to sweep 
 out the old.
 All items sold will have an added shipping cost. Typically for smaller items 
 it will be $5.95, for larger items $11.95 (using USPS flat-rate shipping). 
 Obviously costs will be higher for shipment outside of the U.S. 
 PayPal, check, money order, cash, whatever…
 
 Asking prices are based on a quick scan of recent eBay completed auctions 
 and/or extrapolations for recent auctions of similar items.
 
 Continuing a policy I announced last year IIRC, I will pay a “tax” of 5% on  
 the gross proceeds of any sale arranged through PDML, said funds going as a 
 donation to the list meister’s PDML fund. This comes out of my pocket, not 
 out of yours. I mention this in hopes of encouraging others to think about 
 appropriate payback for the benefits they might have received from this group.
 
 Contact me off list if you are interested. Anything not spoken for in the 
 next few days will go to eBay.
 
 s...@stans-photography.info
 


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FS Friday: Pentax K-mount lenses

2014-08-29 Thread Stanley Halpin
I’ve decided to go ahead and sell off much of my APS-C K-Mount equipment and 
take the plunge with a 645 system.

- DA 12-24/4.0  $430
- DA* 16-50/2.8 $450
- FA* 24/2.0$450
- K 30/2.8  $ 75
- DA 40/2.8 Limited $250
- A 50/2.8 Macro$150
- K 55/1.8  $ 30
- FA 77/1.8 $600
- M135/3.5  $ 30
- FA* 200/4.0 macro $3000
- DA* 300/4 $800

- FA 28-105/4-5.6   $ 50
- DA* 60-250/4.0$1050

- Sigma 150-500/5-6.3   $750


[See separate email for a listing of bodies and accessories for sale.]

All items above are in used but good condition. Most in original boxes with 
pretty much all original contents.
All items have been valued members of my regular equipment mix. Time to sweep 
out the old.
All items sold will have an added shipping cost. Typically for smaller items it 
will be $5.95, for larger items $11.95 (using USPS flat-rate shipping). 
Obviously costs will be higher for shipment outside of the U.S. 
PayPal, check, money order, cash, whatever…

Asking prices are based on a quick scan of recent eBay completed auctions 
and/or extrapolations for recent auctions of similar items.

Continuing a policy I announced last year IIRC, I will pay a “tax” of 5% on  
the gross proceeds of any sale arranged through PDML, said funds going as a 
donation to the list meister’s PDML fund. This comes out of my pocket, not out 
of yours. I mention this in hopes of encouraging others to think about 
appropriate payback for the benefits they might have received from this group.

Contact me off list if you are interested. Anything not spoken for in the next 
few days will go to eBay.

s...@stans-photography.info
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Re: FS Friday: Pentax K-mount lenses

2014-08-29 Thread Jeffery Johnson
Oh my if I had a spare $3000 would get myself a nice K3 and some newer 
lenses.


Jeffery Johnson
Photo Captures by Jeffery http://www.photocapturesbyjeffery.com
http://www.Facebook.com/photocapturesbyjeffery
https://twitter.com/PhotoCaptures
Bringing joy and happiness to lonely and depressed walls across the 
nation with wonderful eclectic photography and Pet photo sessions for an 
array of pets and their families.

On 8/29/2014 11:59 AM, Stanley Halpin wrote:

I’ve decided to go ahead and sell off much of my APS-C K-Mount equipment and 
take the plunge with a 645 system.

- DA 12-24/4.0  $430
- DA* 16-50/2.8 $450
- FA* 24/2.0$450
- K 30/2.8  $ 75
- DA 40/2.8 Limited $250
- A 50/2.8 Macro$150
- K 55/1.8  $ 30
- FA 77/1.8 $600
- M135/3.5  $ 30
- FA* 200/4.0 macro $3000
- DA* 300/4 $800

- FA 28-105/4-5.6   $ 50
- DA* 60-250/4.0$1050

- Sigma 150-500/5-6.3   $750


[See separate email for a listing of bodies and accessories for sale.]

All items above are in used but good condition. Most in original boxes with 
pretty much all original contents.
All items have been valued members of my regular equipment mix. Time to sweep 
out the old.
All items sold will have an added shipping cost. Typically for smaller items it 
will be $5.95, for larger items $11.95 (using USPS flat-rate shipping). 
Obviously costs will be higher for shipment outside of the U.S.
PayPal, check, money order, cash, whatever…

Asking prices are based on a quick scan of recent eBay completed auctions 
and/or extrapolations for recent auctions of similar items.

Continuing a policy I announced last year IIRC, I will pay a “tax” of 5% on  
the gross proceeds of any sale arranged through PDML, said funds going as a 
donation to the list meister’s PDML fund. This comes out of my pocket, not out 
of yours. I mention this in hopes of encouraging others to think about 
appropriate payback for the benefits they might have received from this group.

Contact me off list if you are interested. Anything not spoken for in the next 
few days will go to eBay.

s...@stans-photography.info



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Re: FS Friday: Pentax K-mount lenses

2014-08-29 Thread Zos Xavius
Can I cross post this to my facebook group? These prices are too good
not to share and I'm kicking myself for not borrowing some money right
now.

On Fri, Aug 29, 2014 at 1:27 PM, Jeffery Johnson
jefferyjohn...@photocapturesbyjeffery.com wrote:
 Oh my if I had a spare $3000 would get myself a nice K3 and some newer
 lenses.

 Jeffery Johnson
 Photo Captures by Jeffery http://www.photocapturesbyjeffery.com
 http://www.Facebook.com/photocapturesbyjeffery
 https://twitter.com/PhotoCaptures
 Bringing joy and happiness to lonely and depressed walls across the nation
 with wonderful eclectic photography and Pet photo sessions for an array of
 pets and their families.

 On 8/29/2014 11:59 AM, Stanley Halpin wrote:

 I’ve decided to go ahead and sell off much of my APS-C K-Mount equipment
 and take the plunge with a 645 system.

 - DA 12-24/4.0  $430
 - DA* 16-50/2.8 $450
 - FA* 24/2.0$450
 - K 30/2.8  $ 75
 - DA 40/2.8 Limited $250
 - A 50/2.8 Macro$150
 - K 55/1.8  $ 30
 - FA 77/1.8 $600
 - M135/3.5  $ 30
 - FA* 200/4.0 macro $3000
 - DA* 300/4 $800

 - FA 28-105/4-5.6   $ 50
 - DA* 60-250/4.0$1050

 - Sigma 150-500/5-6.3   $750


 [See separate email for a listing of bodies and accessories for sale.]

 All items above are in used but good condition. Most in original boxes
 with pretty much all original contents.
 All items have been valued members of my regular equipment mix. Time to
 sweep out the old.
 All items sold will have an added shipping cost. Typically for smaller
 items it will be $5.95, for larger items $11.95 (using USPS flat-rate
 shipping). Obviously costs will be higher for shipment outside of the U.S.
 PayPal, check, money order, cash, whatever…

 Asking prices are based on a quick scan of recent eBay completed auctions
 and/or extrapolations for recent auctions of similar items.

 Continuing a policy I announced last year IIRC, I will pay a “tax” of 5%
 on  the gross proceeds of any sale arranged through PDML, said funds going
 as a donation to the list meister’s PDML fund. This comes out of my pocket,
 not out of yours. I mention this in hopes of encouraging others to think
 about appropriate payback for the benefits they might have received from
 this group.

 Contact me off list if you are interested. Anything not spoken for in the
 next few days will go to eBay.

 s...@stans-photography.info



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 PDML@pdml.net
 http://pdml.net/mailman/listinfo/pdml_pdml.net
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 follow the directions.

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Re: 10mm lens in Pentax K mount

2014-06-02 Thread Jos from Holland
Or the Sigma 8-16 that I experience a lot sharper than the Sigma 10-20 
that I once had.

Greetz, Jos

On 1-6-2014 21:53, John wrote:
You might look at Sigma's 10-20 zoom. It's available in a fully 
automatic auto-focus *Pentax* Mount.






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Re: 10mm lens in Pentax K mount

2014-06-01 Thread John
You might look at Sigma's 10-20 zoom. It's available in a fully 
automatic auto-focus *Pentax* Mount.


On 5/30/2014 11:59 AM, Igor Roshchin wrote:



I just discovered that Samyang introduced to the market a new lens in
Pentax K mount:
Samyang 10mm f/2.8 ED AS NCS CS Lens (Pentax K Mount)
http://www.bhphotovideo.com/c/product/1024857-REG/samyang_10mm_f_2_8_ed_as.html

I seldom get use of ultra-wide lenses. And when I tried Pentax 12-24
couple of years ago, I found that it was too wide for my typical use.
However, in my two recent trips twice I wished I had something wider
than 17mm of my 17-70 and not fisheye (8mm).
Still, it probably wouldn't justify for me buying a new lens now.

But I thought there might be somebody here who also missed the news.

Cheers,

Igor




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Re: 10mm lens in Pentax K mount

2014-06-01 Thread Brian Walters

Quoting John jsessoms...@nc.rr.com:

You might look at Sigma's 10-20 zoom. It's available in a fully  
automatic auto-focus *Pentax* Mount.


As is Tamron's 10-24.  I have one and like it a lot, although I don't  
use it or the DA 16-45 as much as I used to now I have the DA 18-135.   
I've just got a bit lazy...



Cheers

Brian

++
Brian Walters
Western Sydney Australia
http://lyons-ryan.org/southernlight/



On 5/30/2014 11:59 AM, Igor Roshchin wrote:



I just discovered that Samyang introduced to the market a new lens in
Pentax K mount:
Samyang 10mm f/2.8 ED AS NCS CS Lens (Pentax K Mount)
http://www.bhphotovideo.com/c/product/1024857-REG/samyang_10mm_f_2_8_ed_as.html

I seldom get use of ultra-wide lenses. And when I tried Pentax 12-24
couple of years ago, I found that it was too wide for my typical use.
However, in my two recent trips twice I wished I had something wider
than 17mm of my 17-70 and not fisheye (8mm).
Still, it probably wouldn't justify for me buying a new lens now.

But I thought there might be somebody here who also missed the news.

Cheers,

Igor




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Samyang 10mm lens in Pentax K mount

2014-05-31 Thread Bipin Gupta
Hello Igor, while an f2.8 lens is certainly welcome, I for one would
prefer the Sigma 10-20 f4-5.6, as it gives better flexibility - auto
focus, electronic metering, many lenses in one, cheaper price.
I believe a Tokina version of a SWA Lens is f2.8 too.
Plus my copy of the Sigma is brutally sharp.
And on our European Tour especially in Italy, we found the Tammy 17-50
f2.8 was not wide enough - huge monuments, tall spires within very
narrow streets were just impossible to capture.
Why even the Eiffel Tower in Paris cannot be captured with the 17-50
unless you move out further a couple of streets - risking traffic, and
straying far out from your group - we were with the Thomas Cook guided
3-weeks tour of Western Europe.
All I can say is that you can produce some magic at the 10mm focal
length - one just needs to experiment.
Regards.
Bipin.
camp: Thornhill, Ontario, Canada.

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Re: Samyang 10mm lens in Pentax K mount

2014-05-31 Thread Zos Xavius
From what I can tell the samyang has better resolution than the sigma.
Its also sharper edge to edge. It looks like one hell of a lens.

On Sat, May 31, 2014 at 10:56 PM, Bipin Gupta bip...@gmail.com wrote:
 Hello Igor, while an f2.8 lens is certainly welcome, I for one would
 prefer the Sigma 10-20 f4-5.6, as it gives better flexibility - auto
 focus, electronic metering, many lenses in one, cheaper price.
 I believe a Tokina version of a SWA Lens is f2.8 too.
 Plus my copy of the Sigma is brutally sharp.
 And on our European Tour especially in Italy, we found the Tammy 17-50
 f2.8 was not wide enough - huge monuments, tall spires within very
 narrow streets were just impossible to capture.
 Why even the Eiffel Tower in Paris cannot be captured with the 17-50
 unless you move out further a couple of streets - risking traffic, and
 straying far out from your group - we were with the Thomas Cook guided
 3-weeks tour of Western Europe.
 All I can say is that you can produce some magic at the 10mm focal
 length - one just needs to experiment.
 Regards.
 Bipin.
 camp: Thornhill, Ontario, Canada.

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10mm lens in Pentax K mount

2014-05-30 Thread Igor Roshchin


I just discovered that Samyang introduced to the market a new lens in
Pentax K mount: 
Samyang 10mm f/2.8 ED AS NCS CS Lens (Pentax K Mount)
http://www.bhphotovideo.com/c/product/1024857-REG/samyang_10mm_f_2_8_ed_as.html

I seldom get use of ultra-wide lenses. And when I tried Pentax 12-24
couple of years ago, I found that it was too wide for my typical use.
However, in my two recent trips twice I wished I had something wider 
than 17mm of my 17-70 and not fisheye (8mm).
Still, it probably wouldn't justify for me buying a new lens now.

But I thought there might be somebody here who also missed the news.

Cheers,

Igor


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Re: 10mm lens in Pentax K mount

2014-05-30 Thread P.J. Alling
It looks like a decent lens, by all accounts, but the release documents 
quoted at a couple of sites don't look encouraging, in that only Nikon 
mounts are said to support automatic operation.  What ever that might 
mean.


What I'm taking it to mean is that all mounts except Nikon are plain old 
machined metal mounts with an aperture ring, while Nikon has the 
electronics for open aperture metering.  KA mounts are simple enough to 
engineer but Samyang didn't bother to acquire whatever rights are now 
required to make anything other than plain K mount lenses.


I could be wrong about that, but you would think that they'd tout having 
full metering compatibility with Pentax if they actually supported it.


On 5/30/2014 11:59 AM, Igor Roshchin wrote:


I just discovered that Samyang introduced to the market a new lens in
Pentax K mount:
Samyang 10mm f/2.8 ED AS NCS CS Lens (Pentax K Mount)
http://www.bhphotovideo.com/c/product/1024857-REG/samyang_10mm_f_2_8_ed_as.html

I seldom get use of ultra-wide lenses. And when I tried Pentax 12-24
couple of years ago, I found that it was too wide for my typical use.
However, in my two recent trips twice I wished I had something wider
than 17mm of my 17-70 and not fisheye (8mm).
Still, it probably wouldn't justify for me buying a new lens now.

But I thought there might be somebody here who also missed the news.

Cheers,

Igor





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crazier.

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Re: 10mm lens in Pentax K mount

2014-05-30 Thread Igor Roshchin



AFAIK, all [recent] Samyang lenses come with the mount that analogous 
to A lenses of Pentax (i.e. KA mount).

I didn't have a change to read the release documents that you mentioned,
but I suspect they might mean something different by that automatic.
(I saw mentioning of AE for Nikon.)

Note that what has caused some confusion previously is that many
merchants were posting images of Samyang lenses in different mounts onto
the Pentax-mount product page.

HTH,

Igor


Fri May 30 12:34:02 EDT 2014
P.J. Alling wrote:

It looks like a decent lens, by all accounts, but the release documents 
quoted at a couple of sites don't look encouraging, in that only Nikon 
mounts are said to support automatic operation.  What ever that might 
mean.

What I'm taking it to mean is that all mounts except Nikon are plain old 
machined metal mounts with an aperture ring, while Nikon has the 
electronics for open aperture metering.  KA mounts are simple enough to 
engineer but Samyang didn't bother to acquire whatever rights are now 
required to make anything other than plain K mount lenses.

I could be wrong about that, but you would think that they'd tout having 
full metering compatibility with Pentax if they actually supported it.

On 5/30/2014 11:59 AM, Igor Roshchin wrote:

 I just discovered that Samyang introduced to the market a new lens in
 Pentax K mount:
 Samyang 10mm f/2.8 ED AS NCS CS Lens (Pentax K Mount)
 http://www.bhphotovideo.com/c/product/1024857-REG/samyang_10mm_f_2_8_ed_as.html

 I seldom get use of ultra-wide lenses. And when I tried Pentax 12-24
 couple of years ago, I found that it was too wide for my typical use.
 However, in my two recent trips twice I wished I had something wider
 than 17mm of my 17-70 and not fisheye (8mm).
 Still, it probably wouldn't justify for me buying a new lens now.

 But I thought there might be somebody here who also missed the news.

 Cheers,

 Igor



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Re: Pentax K-01 follow-up? (or other Pentax K-mount mirrorless)

2013-10-23 Thread Boris Liberman

On 10/22/2013 8:05 AM, Ciprian Dorin Craciun wrote:

 The lack of an EVF was also a concern to me.  However even though
my old Fuji had one, I've seldom used it (mainly due to low resolution
and small size), thus my feelings are mixed about this...


Well, times change. Technology changes even at faster rate... You may be 
up for a pleasant surprise. But it is of course with usual disclaimer 
that your eyesight is certainly different than mine.



 I don't think that an adapter would be the best approach, mainly
because I own only two digital lenses (and if I'm to buy new ones it
would be of this sort).  Thus no aperture ring.  Besides that I'm not
sure that manual focus is that accurate on these lenses...


You're wrong, sir. My adapter has a ring that controls the aperture in 
continuous manner. I could do any of these:


1. Set the lens aperture at A. Turn the ring - open the aperture, focus, 
close the aperture by the ring looking in the EVF until the picture 
there looks just right in terms of DOF and shutter speed/ISO.


2. Turn the ring all the way so that the aperture is closed. Set the 
lens aperture to any value I want (for lenses that can do it). Take a 
picture. This is how I shoot most of the time.


3. Any combination of the 1 and 2 above.

I admit - I only have one such lens DA 21/3.2 that I will soon be 
offering for sale. I haven't tried to shoot as described in p.1 above, 
but it is at least technically possible.


Boris



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Re: Pentax K-01 follow-up? (or other Pentax K-mount mirrorless)

2013-10-22 Thread P.J. Alling
The K-01 was back in production, at least for a while.  It returned in 
blue and white.


http://photorumors.com/2013/07/04/pentax-k-01-marc-newson-camera-resurrected-in-blue-and-white-colors/

It was available from Adorama or BH in that version in August IIRC.  
They don't seem to have them now.


On 10/21/2013 2:28 PM, Ciprian Dorin Craciun wrote:

 (For the meat of the subject you could skip directly to the
paragraph THE DILEMMA.  Below I add some context to it.)


 As I've mentioned yesterday in the thread Which camera brand
would you choose, if you started from scratch? I currently own a
new-ish Pentax K-30 and an old FujiFilm FinePix S5600 / S5200.

 Although the K-30 serves me well, it fails to completely replace
my Fuji S5600 for a simple reason:  it's too large and heavy to easily
fit into my laptop backpack (especially when I travel without
photography in mind).  (Even the Fuji is at the limit, however I
managed to log it with me almost every day in the last few years, and
everywhere I traveled.)

 Thus I'm looking for a portable replacement for the Fuji.  I've
looked at m4:3 (Olympus and Panasonic), Pentax Q, the Ricoh GR / GXR,
Fuji, both fixed and interchangeable lenses, etc.  I've even looked at
point-and-shoot from various manufacturers, (including Pentax,
Olympus, Nikon and Cannon) which I've disregarded due either lack of
manual control or too small sensors.

 All (except the PS) were nice and compact replacements, however
they all failed to beat the Pentax-K01 in two respects:  they are more
costly (at least in my country), and they don't take K-mount lenses of
which I already have two.


 == THE DILEMMA ==

 Therefore my question (or questions) is:  is there any chance that
a K-mount mirrorless will appear in the near future (i.e. 6 months
till it hits the shelf)?  Or should I buy the K-01 while it's still
available in stock (I know it's out of production)?

 Or have I missed something which advises against the K-01?  (I
must note that I haven't read too many reviews...)


 Feedback is much appreciated,
 Ciprian.




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Re: Pentax K-01 follow-up? (or other Pentax K-mount mirrorless)

2013-10-22 Thread Larry Colen
On Tue, Oct 22, 2013 at 06:42:35AM +0300, Boris Liberman wrote:
 On 10/21/2013 9:28 PM, Ciprian Dorin Craciun wrote:
  == THE DILEMMA ==
 
  Therefore my question (or questions) is:  is there any chance that
 a K-mount mirrorless will appear in the near future (i.e. 6 months
 till it hits the shelf)?  Or should I buy the K-01 while it's still
 available in stock (I know it's out of production)?
 
  Or have I missed something which advises against the K-01?  (I
 must note that I haven't read too many reviews...)
 
 The only thing that I don't like about K-01 is that you cannot
 attach a EVF to it - you absolutely have to focus/compose by the
 screen. In the bright light this may prove an issue. You could buy
 this accessory that attaches to the back of the camera and blocks
 the stray light, but it would make your camera significantly bigger.

The one time I saw a K-01 in person, was at an outside event on a sunny day.

I found the viewfinder to be surprisingly easy to see outside in sunlight.
When I was out shooting yesterday I met another K-5 shooter. He also has
a K-01 that he says he uses primarily for manual focus lenses because of
the focus peaking.  His big complaint with it is that when shooting raw 
it will only shoot one frame per second.

 
 Beside that - if you can handle the ergonomics - it's fine.
 
 I don't grok though why you have so much trouble with using your
 Pentax lenses on other cameras. All mirrorless (or most of them)
 cameras can be used with Pentax lenses via adapter. I have one such
 adapter for Leica M-mount, so that I can use my A50/1.2 on Ricoh
 GXR. You still get focus peaking and semi-auto mode (you set
 aperture on the lens, camera sets the rest - shutter speed and ISO).
 It works really well.
 
 As for your original question - I couldn't possibly tell whether a
 follow up to K-01 will come. I would say that it is possible but
 with rather low probability but it is just a guess.
 
 Boris
 
 
 
 
 
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Re: Pentax K-01 follow-up? (or other Pentax K-mount mirrorless)

2013-10-22 Thread Joseph McAllister
On Oct 21, 2013, at 20:42 , Boris Liberman wrote:
 The only thing that I don't like about K-01 is that you cannot attach a EVF 
 to it - you absolutely have to focus/compose by the screen. In the bright 
 light this may prove an issue. You could buy this accessory that attaches to 
 the back of the camera and blocks the stray light, but it would make your 
 camera significantly bigger.


Regards non-slr cameras with LCD screens.

I am thinking of buying a large and long bill'd baseball type hat and wearing 
my flip-up 7.00x close-up watchmaker type plastic lenses that clip on to my 
regular trifocals. I've tried the combo indoors and outdoors with a normal 
baseball cap on an overcast day, and they were great. In the sun the unrimmed 
plastic magnifiers may catch some light which may interfere.

It would depend on the magnification of your flip-ups, but with my 1.25 
drugstore 67mm readers and my 7.00x flip-ups, the LCD of my Pentax Q is in 
focus from ~ 6 inches to ~7.5 inches measuring from my eyebrow, and completely 
fills the immediate field of vision of the glasses. Bonus: You can read the 
letters and symbols on the back of the camera without holding it at arms 
length! And with my trifocal glasses, it's even better.

Flip the added lenses up and they are completely out of the way as would be 
clip-on sunglasses.

Tracking birds or critters in the wild you are still better off with a red dot 
scope at arms length because you can see around the camera to spot your target 
with your spare eye. No need to look at the LCD; find target, place the red dot 
on it (or usually just under or over it so it'd not be centered, giving you 
some room to crop.


  Joseph McAllister
pentax...@mac.com













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Re: Pentax K-01 follow-up? (or other Pentax K-mount mirrorless)

2013-10-22 Thread Larry Colen
On Tue, Oct 22, 2013 at 01:15:00AM -0700, Joseph McAllister wrote:
 On Oct 21, 2013, at 20:42 , Boris Liberman wrote:
  The only thing that I don't like about K-01 is that you cannot attach a EVF 
  to it - you absolutely have to focus/compose by the screen. In the bright 
  light this may prove an issue. You could buy this accessory that attaches 
  to the back of the camera and blocks the stray light, but it would make 
  your camera significantly bigger.
 
 
 Regards non-slr cameras with LCD screens.
 
 I am thinking of buying a large and long bill'd baseball type hat and wearing 
 my flip-up 7.00x close-up watchmaker type plastic lenses that clip on to my 
 regular trifocals. I've tried the combo indoors and outdoors with a normal 
 baseball cap on an overcast day, and they were great. In the sun the unrimmed 
 plastic magnifiers may catch some light which may interfere.

Joe, 
you may have just elevated photo-nerdery to an artform.


 
 It would depend on the magnification of your flip-ups, but with my 1.25 
 drugstore 67mm readers and my 7.00x flip-ups, the LCD of my Pentax Q is in 
 focus from ~ 6 inches to ~7.5 inches measuring from my eyebrow, and 
 completely fills the immediate field of vision of the glasses. Bonus: You can 
 read the letters and symbols on the back of the camera without holding it at 
 arms length! And with my trifocal glasses, it's even better.
 
 Flip the added lenses up and they are completely out of the way as would be 
 clip-on sunglasses.
 
 Tracking birds or critters in the wild you are still better off with a red 
 dot scope at arms length because you can see around the camera to spot your 
 target with your spare eye. No need to look at the LCD; find target, place 
 the red dot on it (or usually just under or over it so it'd not be centered, 
 giving you some room to crop.
 
 
   Joseph McAllister
 pentax...@mac.com
 
 
 
 
 
 
 
 
 
 
 
 
 
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Re: Pentax K-01 follow-up? (or other Pentax K-mount mirrorless)

2013-10-22 Thread Joseph McAllister

On Oct 22, 2013, at 01:25 , Larry Colen wrote:

 On Tue, Oct 22, 2013 at 01:15:00AM -0700, Joseph McAllister wrote:
 On Oct 21, 2013, at 20:42 , Boris Liberman wrote:
 The only thing that I don't like about K-01 is that you cannot attach a EVF 
 to it - you absolutely have to focus/compose by the screen. In the bright 
 light this may prove an issue. You could buy this accessory that attaches 
 to the back of the camera and blocks the stray light, but it would make 
 your camera significantly bigger.
 
 
 Regards non-slr cameras with LCD screens.
 
 I am thinking of buying a large and long bill'd baseball type hat and 
 wearing my flip-up 7.00x close-up watchmaker type plastic lenses that clip 
 on to my regular trifocals. I've tried the combo indoors and outdoors with a 
 normal baseball cap on an overcast day, and they were great. In the sun the 
 unrimmed plastic magnifiers may catch some light which may interfere.
 
 Joe, 
 you may have just elevated photo-nerdery to an artform.
 
We thank ya Larry. It's always good to be elevated, socially, physically, or 
chemically. Been all three, IIRC…

It's why I got me a degree in Fine Art, so I could spend more time being artsy. 
{poor}

Now you have an opportunity Larry. Inventing photo-nerdery you must copyright 
it; collect some coin!


 
 It would depend on the magnification of your flip-ups, but with my 1.25 
 drugstore 67mm readers and my 7.00x flip-ups, the LCD of my Pentax Q is in 
 focus from ~ 6 inches to ~7.5 inches measuring from my eyebrow, and 
 completely fills the immediate field of vision of the glasses. Bonus: You 
 can read the letters and symbols on the back of the camera without holding 
 it at arms length! And with my trifocal glasses, it's even better.
 
 Flip the added lenses up and they are completely out of the way as would be 
 clip-on sunglasses.
 
 Tracking birds or critters in the wild you are still better off with a red 
 dot scope at arms length because you can see around the camera to spot your 
 target with your spare eye. No need to look at the LCD; find target, place 
 the red dot on it (or usually just under or over it so it'd not be centered, 
 giving you some room to crop.

Joseph McAllister
Too much gear, not much time






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Pentax K-01 follow-up? (or other Pentax K-mount mirrorless)

2013-10-21 Thread Ciprian Dorin Craciun
(For the meat of the subject you could skip directly to the
paragraph THE DILEMMA.  Below I add some context to it.)


As I've mentioned yesterday in the thread Which camera brand
would you choose, if you started from scratch? I currently own a
new-ish Pentax K-30 and an old FujiFilm FinePix S5600 / S5200.

Although the K-30 serves me well, it fails to completely replace
my Fuji S5600 for a simple reason:  it's too large and heavy to easily
fit into my laptop backpack (especially when I travel without
photography in mind).  (Even the Fuji is at the limit, however I
managed to log it with me almost every day in the last few years, and
everywhere I traveled.)

Thus I'm looking for a portable replacement for the Fuji.  I've
looked at m4:3 (Olympus and Panasonic), Pentax Q, the Ricoh GR / GXR,
Fuji, both fixed and interchangeable lenses, etc.  I've even looked at
point-and-shoot from various manufacturers, (including Pentax,
Olympus, Nikon and Cannon) which I've disregarded due either lack of
manual control or too small sensors.

All (except the PS) were nice and compact replacements, however
they all failed to beat the Pentax-K01 in two respects:  they are more
costly (at least in my country), and they don't take K-mount lenses of
which I already have two.


== THE DILEMMA ==

Therefore my question (or questions) is:  is there any chance that
a K-mount mirrorless will appear in the near future (i.e. 6 months
till it hits the shelf)?  Or should I buy the K-01 while it's still
available in stock (I know it's out of production)?

Or have I missed something which advises against the K-01?  (I
must note that I haven't read too many reviews...)


Feedback is much appreciated,
Ciprian.

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Re: Pentax K-01 follow-up? (or other Pentax K-mount mirrorless)

2013-10-21 Thread Boris Liberman

On 10/21/2013 9:28 PM, Ciprian Dorin Craciun wrote:

 == THE DILEMMA ==

 Therefore my question (or questions) is:  is there any chance that
a K-mount mirrorless will appear in the near future (i.e. 6 months
till it hits the shelf)?  Or should I buy the K-01 while it's still
available in stock (I know it's out of production)?

 Or have I missed something which advises against the K-01?  (I
must note that I haven't read too many reviews...)


The only thing that I don't like about K-01 is that you cannot attach a 
EVF to it - you absolutely have to focus/compose by the screen. In the 
bright light this may prove an issue. You could buy this accessory that 
attaches to the back of the camera and blocks the stray light, but it 
would make your camera significantly bigger.


Beside that - if you can handle the ergonomics - it's fine.

I don't grok though why you have so much trouble with using your Pentax 
lenses on other cameras. All mirrorless (or most of them) cameras can be 
used with Pentax lenses via adapter. I have one such adapter for Leica 
M-mount, so that I can use my A50/1.2 on Ricoh GXR. You still get focus 
peaking and semi-auto mode (you set aperture on the lens, camera sets 
the rest - shutter speed and ISO). It works really well.


As for your original question - I couldn't possibly tell whether a 
follow up to K-01 will come. I would say that it is possible but with 
rather low probability but it is just a guess.


Boris





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Re: Pentax K-01 follow-up? (or other Pentax K-mount mirrorless)

2013-10-21 Thread Ciprian Dorin Craciun
On Tue, Oct 22, 2013 at 6:42 AM, Boris Liberman bori...@gmail.com wrote:
 On 10/21/2013 9:28 PM, Ciprian Dorin Craciun wrote:

  == THE DILEMMA ==

  Therefore my question (or questions) is:  is there any chance that
 a K-mount mirrorless will appear in the near future (i.e. 6 months
 till it hits the shelf)?  Or should I buy the K-01 while it's still
 available in stock (I know it's out of production)?

  Or have I missed something which advises against the K-01?  (I
 must note that I haven't read too many reviews...)


 The only thing that I don't like about K-01 is that you cannot attach a EVF
 to it - you absolutely have to focus/compose by the screen. In the bright
 light this may prove an issue.

The lack of an EVF was also a concern to me.  However even though
my old Fuji had one, I've seldom used it (mainly due to low resolution
and small size), thus my feelings are mixed about this...


 I don't grok though why you have so much trouble with using your Pentax
 lenses on other cameras. All mirrorless (or most of them) cameras can be
 used with Pentax lenses via adapter. I have one such adapter for Leica
 M-mount, so that I can use my A50/1.2 on Ricoh GXR. You still get focus
 peaking and semi-auto mode (you set aperture on the lens, camera sets the
 rest - shutter speed and ISO). It works really well.

I don't think that an adapter would be the best approach, mainly
because I own only two digital lenses (and if I'm to buy new ones it
would be of this sort).  Thus no aperture ring.  Besides that I'm not
sure that manual focus is that accurate on these lenses...


 As for your original question - I couldn't possibly tell whether a follow up
 to K-01 will come. I would say that it is possible but with rather low
 probability but it is just a guess.

That was my feeling also...

Thanks for the feedback!
Ciprian.

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Re: No Pentax K mount for new Tamron 70-200/2.8 lens

2012-09-15 Thread lrc
Dave
I dont remember if that is the tkina 80-200/2.8 I have.  Mine is manusl focus 
and ehen I nail focus it is pretty sharp.
My shots from last night were shot with it. Some eith a tsmron 2x. 
I dont have thr exact url but its the most recent set, of Kim Nalley at
Http://flickr.com/ellarsee
Look at the set with fluidr to get the exif data.

David Mann dmann...@gmail.com wrote:

That reminds me.  Sorry to hijack the thread but does anyone have
experience with the Tokina ATX Pro 80-200 f/2.8?  I've seen one selling
locally and a bit of googling shows some people moaning about fringing,
but I'd trust PDMLers a bit more than random internet pixel-peepers.

Cheers,
Dave

On Sep 15, 2012, at 4:20 AM, Igor Roshchin s...@komkon.org wrote:

 
 
 $Subj.
 

http://www.dpreview.com/news/2012/09/13/Tamron-SP-70-200mm-F2-8-Di-VC-USD-ultrasonic-focus-motor-and-image-stabilization
 
 It looks like it might be a good lens.
 I kind of doubt Pentax would be rebadging that one...
 
 Igor
 
 
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Re: No Pentax K mount for new Tamron 70-200/2.8 lens

2012-09-15 Thread lrc
Tokina At-x sd 80-200/2.8  
Not the pro.  It will take some time to learn how to get the most out of it, 
but it certainly has potential.  

l...@red4est.com wrote:

Dave
I dont remember if that is the tkina 80-200/2.8 I have.  Mine is manusl
focus and ehen I nail focus it is pretty sharp.
My shots from last night were shot with it. Some eith a tsmron 2x. 
I dont have thr exact url but its the most recent set, of Kim Nalley at
Http://flickr.com/ellarsee
Look at the set with fluidr to get the exif data.

David Mann dmann...@gmail.com wrote:

That reminds me.  Sorry to hijack the thread but does anyone have
experience with the Tokina ATX Pro 80-200 f/2.8?  I've seen one
selling
locally and a bit of googling shows some people moaning about
fringing,
but I'd trust PDMLers a bit more than random internet pixel-peepers.

Cheers,
Dave

On Sep 15, 2012, at 4:20 AM, Igor Roshchin s...@komkon.org wrote:

 
 
 $Subj.
 

http://www.dpreview.com/news/2012/09/13/Tamron-SP-70-200mm-F2-8-Di-VC-USD-ultrasonic-focus-motor-and-image-stabilization
 
 It looks like it might be a good lens.
 I kind of doubt Pentax would be rebadging that one...
 
 Igor
 
 
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Re: No Pentax K mount for new Tamron 70-200/2.8 lens

2012-09-15 Thread John Sessoms
I've got the auto-focus version. I think it's a damn good lens. I 
haven't noticed fringing.


From: David Mann


That reminds me. Sorry to hijack the thread but does anyone have
experience with the Tokina ATX Pro 80-200 f/2.8? I've seen one selling
locally and a bit of googling shows some people moaning about fringing,
but I'd trust PDMLers a bit more than random internet pixel-peepers.

Cheers,
Dave

On Sep 15, 2012, at 4:20 AM, Igor Roshchin s...@komkon.org wrote:



$Subj.

http://www.dpreview.com/news/2012/09/13/Tamron-SP-70-200mm-F2-8-Di-VC-USD-ultrasonic-focus-motor-and-image-stabilization

It looks like it might be a good lens.
I kind of doubt Pentax would be rebadging that one...

Igor


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Re: No Pentax K mount for new Tamron 70-200/2.8 lens

2012-09-15 Thread Darren Addy
It does appear that people are happier with the AT-X Pro but I
haven't figured out what  specifications differences there are between
PRO and a non-PRO Tokina AT-X. I've seen the SD designation on both
the PRO and the Non-Pro.

In any event, a lot of people don't seem to get the difference between
chromatic aberration of the lens and purple fringing which most
people agree is caused my the microlenses on the sensor. Thus, I get
kind of tired of hearing that this lens causes this or that, without
also knowing what sensor you are putting the lens in front of.

I also think that some people use a lens in improper conditions. An
f2.8 zoom in this range is probably meant for low-light conditions or
when you are trying to boost your shutter speed to freeze action. If
you are shooting indoors with it, I doubt you get purple fringing. If
you are shooting on a cloudy day, I doubt you get purple fringing. If
you aim it at bare tree branches on a sunny cloudless day at f2.8 (or
there abouts) then I'll bet you get some purple fringing. Mike
Johnston calls this stressing a lens
http://theonlinephotographer.typepad.com/the_online_photographer/how-to-stress-a-camera-le.html
But it still isn't really (probably) being caused by the lens, but by
the bleeding of information at the sensor level.

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No Pentax K mount for new Tamron 70-200/2.8 lens

2012-09-14 Thread Igor Roshchin


$Subj.

http://www.dpreview.com/news/2012/09/13/Tamron-SP-70-200mm-F2-8-Di-VC-USD-ultrasonic-focus-motor-and-image-stabilization

It looks like it might be a good lens.
I kind of doubt Pentax would be rebadging that one...

Igor


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Re: No Pentax K mount for new Tamron 70-200/2.8 lens

2012-09-14 Thread David Mann
That reminds me.  Sorry to hijack the thread but does anyone have experience 
with the Tokina ATX Pro 80-200 f/2.8?  I've seen one selling locally and a bit 
of googling shows some people moaning about fringing, but I'd trust PDMLers a 
bit more than random internet pixel-peepers.

Cheers,
Dave

On Sep 15, 2012, at 4:20 AM, Igor Roshchin s...@komkon.org wrote:

 
 
 $Subj.
 
 http://www.dpreview.com/news/2012/09/13/Tamron-SP-70-200mm-F2-8-Di-VC-USD-ultrasonic-focus-motor-and-image-stabilization
 
 It looks like it might be a good lens.
 I kind of doubt Pentax would be rebadging that one...
 
 Igor
 
 
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Re: New Carl Zeiss lenses for Pentax K mount!

2007-07-06 Thread Peter Lacus
Adam,

big hit in Nikon-land, that's only because the Nikon 50/1.4 is fairly 
average in performance not because the Zeiss is legendary in its 
performance.

especially when it's Cosina Zeiss...

 Yet several of the Cosina-built Zeiss lenses outperform their Contax 
 predecessors. Notably the ZF 25/2.8(which is an entirely new design) and 
 the ZM 21/2.8.

don't get me wrong, I have nothing against Cosina. Actually they are 
quite like Pentax and usually offer excellent value for money. But these 
Carl Zeiss lenses are far from that - Pentax own Limiteds are much 
better value IMO.

BTW Contax(Kyocera)/Cosina doesn't matter, both are building lenses in 
some automated factory so I'd expect similar results. The price of 
original Zeiss/Leica glass is higher because of the labour cost involved 
(hand assembly, testing), while this is perhaps slightly above standard 
mass production with fancy name on top of it (an unnecessarily high 
price IMHO).

Cheers,

Peter

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Re: New Carl Zeiss lenses for Pentax K mount!

2007-07-06 Thread Mishka
I have 3 Cosina Voightlander lenses in PKA, and their
build and optical quality is no worse than that of Pentax LTDs in every respect.
They are quite costly too.

best,
mishka

On 7/6/07, Peter Lacus [EMAIL PROTECTED] wrote:
 Adam,

 big hit in Nikon-land, that's only because the Nikon 50/1.4 is fairly
 average in performance not because the Zeiss is legendary in its
 performance.
 
 especially when it's Cosina Zeiss...

  Yet several of the Cosina-built Zeiss lenses outperform their Contax
  predecessors. Notably the ZF 25/2.8(which is an entirely new design) and
  the ZM 21/2.8.

 don't get me wrong, I have nothing against Cosina. Actually they are
 quite like Pentax and usually offer excellent value for money. But these
 Carl Zeiss lenses are far from that - Pentax own Limiteds are much
 better value IMO.

 BTW Contax(Kyocera)/Cosina doesn't matter, both are building lenses in
 some automated factory so I'd expect similar results. The price of
 original Zeiss/Leica glass is higher because of the labour cost involved
 (hand assembly, testing), while this is perhaps slightly above standard
 mass production with fancy name on top of it (an unnecessarily high
 price IMHO).

 Cheers,

 Peter

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Re: New Carl Zeiss lenses for Pentax K mount!

2007-07-06 Thread Adam Maas
Peter Lacus wrote:
 Adam,
 
 big hit in Nikon-land, that's only because the Nikon 50/1.4 is fairly 
 average in performance not because the Zeiss is legendary in its 
 performance.
 especially when it's Cosina Zeiss...
 
 Yet several of the Cosina-built Zeiss lenses outperform their Contax 
 predecessors. Notably the ZF 25/2.8(which is an entirely new design) and 
 the ZM 21/2.8.
 
 don't get me wrong, I have nothing against Cosina. Actually they are 
 quite like Pentax and usually offer excellent value for money. But these 
 Carl Zeiss lenses are far from that - Pentax own Limiteds are much 
 better value IMO.
 
 BTW Contax(Kyocera)/Cosina doesn't matter, both are building lenses in 
 some automated factory so I'd expect similar results. The price of 
 original Zeiss/Leica glass is higher because of the labour cost involved 
 (hand assembly, testing), while this is perhaps slightly above standard 
 mass production with fancy name on top of it (an unnecessarily high 
 price IMHO).
 
 Cheers,
 
 Peter
 

Pentax LTD's are an incredible value, costing significantly less than 
any other lenses of equivalent quality other than the Voightlanders and 
some Nikkor AI-S's. Price against L glass sometime and look how 
incredible the LTD's value is.

The Carl Zeiss lenses from Cosina  Zeiss are actually a decent value 
compared to what their Contax predecessors and Leica competition. Note 
the current Zeiss lenses are individually QC'd by Zeiss on Zeiss test 
kit located in the Cosina factory in Japan. They're also one of the very 
few lens lines produced entirely in Japan or Germany (Cosina is the only 
Japanese lens manufacturer to produce all of its lenses in Japan, Zeiss 
makes a couple of the ZM line in Germany as Cosina isn't setup to handle 
floating elements). Even Leica can't say that (Leica only does finishing 
and QC in Germany, base production is elsewhere, IIRC it's Portugal).

-Adam

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Re: New Carl Zeiss lenses for Pentax K mount!

2007-07-05 Thread Peter Lacus

 big hit in Nikon-land, that's only because the Nikon 50/1.4 is fairly 
 average in performance not because the Zeiss is legendary in its 
 performance.

especially when it's Cosina Zeiss...

Cheers,

Peter

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Re: New Carl Zeiss lenses for Pentax K mount!

2007-07-05 Thread Adam Maas
Peter Lacus wrote:
 big hit in Nikon-land, that's only because the Nikon 50/1.4 is fairly 
 average in performance not because the Zeiss is legendary in its 
 performance.
 
 especially when it's Cosina Zeiss...
 
 Cheers,
 
 Peter
 

Yet several of the Cosina-built Zeiss lenses outperform their Contax 
predecessors. Notably the ZF 25/2.8(which is an entirely new design) and 
the ZM 21/2.8.

-Adam

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Re: New Carl Zeiss lenses for Pentax K mount!

2007-07-04 Thread Jaume Lahuerta
- Mensaje original 
De: Toralf Lund [EMAIL PROTECTED]
Para: Pentax-Discuss Mail List pdml@pdml.net
Enviado: martes, 3 de julio, 2007 21:32:18
Asunto: Re: New Carl Zeiss lenses for Pentax K mount!

They way I understand the last paragraph on the web page, the lenses 
will indeed be KA mount. I don't necessarily claim to be fluent in 
Spanish, though...

You are fluent enough Toralf  ;-)
the objectives will be compatible with the standard SMC-A





   

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Re: New Carl Zeiss lenses for Pentax K mount!

2007-07-04 Thread Alastair Robertson
why is there no A setting on the aperture ring then?
Alastair

On 7/4/07, Jaume Lahuerta [EMAIL PROTECTED] wrote:
 - Mensaje original 
 De: Toralf Lund [EMAIL PROTECTED]
 Para: Pentax-Discuss Mail List pdml@pdml.net
 Enviado: martes, 3 de julio, 2007 21:32:18
 Asunto: Re: New Carl Zeiss lenses for Pentax K mount!

 They way I understand the last paragraph on the web page, the lenses
 will indeed be KA mount. I don't necessarily claim to be fluent in
 Spanish, though...

 You are fluent enough Toralf  ;-)
 the objectives will be compatible with the standard SMC-A






 
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Re: New Carl Zeiss lenses for Pentax K mount!

2007-07-04 Thread Jaume Lahuerta
The end of the picture caption says (...), like this Planar 85 mm f1.4 for 
Nikon

So the picture shows a Nikon mount lens, not Pentax KA.

- Mensaje original 
De: Alastair Robertson [EMAIL PROTECTED]
Para: Pentax-Discuss Mail List pdml@pdml.net
Enviado: miércoles, 4 de julio, 2007 11:12:03
Asunto: Re: New Carl Zeiss lenses for Pentax K mount!

why is there no A setting on the aperture ring then?
Alastair

On 7/4/07, Jaume Lahuerta [EMAIL PROTECTED] wrote:
 - Mensaje original 
 De: Toralf Lund [EMAIL PROTECTED]
 Para: Pentax-Discuss Mail List pdml@pdml.net
 Enviado: martes, 3 de julio, 2007 21:32:18
 Asunto: Re: New Carl Zeiss lenses for Pentax K mount!

 They way I understand the last paragraph on the web page, the lenses
 will indeed be KA mount. I don't necessarily claim to be fluent in
 Spanish, though...

 You are fluent enough Toralf  ;-)
 the objectives will be compatible with the standard SMC-A






 
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Re: New Carl Zeiss lenses for Pentax K mount!

2007-07-04 Thread Sylwester Pietrzyk
Because lens on the photo is in Nikon F mount! :-)

Cheers,
Sylwek


On 04.07.2007, at 11:12 , Alastair Robertson wrote:

 why is there no A setting on the aperture ring then?


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Re: New Carl Zeiss lenses for Pentax K mount!

2007-07-04 Thread Thibouille
Lens with aperture ring on chich you can read two writing for each
aperture value are Nikon lens (yeah Tamron Adaptall2-K adapter had
that too for aperture in the viewfinder trick).

2007/7/4, Alastair Robertson [EMAIL PROTECTED]:
 why is there no A setting on the aperture ring then?
 Alastair

 On 7/4/07, Jaume Lahuerta [EMAIL PROTECTED] wrote:
  - Mensaje original 
  De: Toralf Lund [EMAIL PROTECTED]
  Para: Pentax-Discuss Mail List pdml@pdml.net
  Enviado: martes, 3 de julio, 2007 21:32:18
  Asunto: Re: New Carl Zeiss lenses for Pentax K mount!
 
  They way I understand the last paragraph on the web page, the lenses
  will indeed be KA mount. I don't necessarily claim to be fluent in
  Spanish, though...
 
  You are fluent enough Toralf  ;-)
  the objectives will be compatible with the standard SMC-A
 
 
 
 
 
 
  
  ¡Descubre una nueva forma de obtener respuestas a tus preguntas!
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Re: New Carl Zeiss lenses for Pentax K mount!

2007-07-04 Thread John Sessoms
From:
Godfrey DiGiorgi
 On Jul 3, 2007, at 8:18 PM, John Sessoms wrote:

 Any views on Zeiss 85mm f/1.4 glass vs the Pentax version(s)?

 Or the Zeiss 25mm f/2.8 vs. Pentax SMCP-A 24mm f/2.8?

 Having had the Pentax-A lens, and based on the stuff I've seen with 
 the Zeiss, I'd take the Zeiss.

 Besides, you can't buy an SMC Pentax-A 24mm f/2.8 new anywhere that I 
 know of.
If I didn't already have it, that might be a consideration.

But since I *do* already have one, I'm more interested to know if 
there's sufficient blow your socks off quality difference to justify 
replacing it.


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Re: New Carl Zeiss lenses for Pentax K mount!

2007-07-04 Thread Adam Maas
John Sessoms wrote:
 From:
 Godfrey DiGiorgi
 On Jul 3, 2007, at 8:18 PM, John Sessoms wrote:

 Any views on Zeiss 85mm f/1.4 glass vs the Pentax version(s)?

 Or the Zeiss 25mm f/2.8 vs. Pentax SMCP-A 24mm f/2.8?
 Having had the Pentax-A lens, and based on the stuff I've seen with 
 the Zeiss, I'd take the Zeiss.

 Besides, you can't buy an SMC Pentax-A 24mm f/2.8 new anywhere that I 
 know of.
 If I didn't already have it, that might be a consideration.
 
 But since I *do* already have one, I'm more interested to know if 
 there's sufficient blow your socks off quality difference to justify 
 replacing it.
 
 

I suggest perusing the 24/25mm lens tests over at 16-9.net.

Here's the ZF 25/2.8 vs. the Canon 24/1.4L (the winner of their 24mm roundup, 
the Pentax didn't even qualify as they found the Sigma 24/2.8 SuperWide II to 
be superior)

http://www.16-9.net/lens_tests/zf25_canon24/zeiss_zf25a.html

-Adam




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Re: New Carl Zeiss lenses for Pentax K mount!

2007-07-04 Thread Godfrey DiGiorgi

On Jul 4, 2007, at 12:38 PM, John Sessoms wrote:

 Besides, you can't buy an SMC Pentax-A 24mm f/2.8 new anywhere that I
 know of.
 If I didn't already have it, that might be a consideration.

 But since I *do* already have one, I'm more interested to know if
 there's sufficient blow your socks off quality difference to justify
 replacing it.

I can answer that without even thinking: no.

The Pentax-A 24/2.8 is a very good lens. The Zeiss is without a doubt  
better, but as in the evaluation of high end stereo, how much better  
and whether it has any practical significance is questionable. A  
greater difference in quality would be seen by putting the camera on  
a tripod vs working hand held.

I've seen this time and time again. Once you're at the quality level  
of a lens like the A24/2.8, the improvement lent by a better lens is  
pretty difficult to see.

G

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Re: New Carl Zeiss lenses for Pentax K mount!

2007-07-04 Thread Cotty
On 3/7/07, Bertil Holmberg, discombobulated, unleashed:

Any views on Zeiss 85mm f/1.4 glass vs the Pentax version(s)?

Yeah, you can see through the Pentax version.

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New Carl Zeiss lenses for Pentax K mount!

2007-07-03 Thread Jaume Lahuerta
I have just seen this in a Spanish (reliable) site:
http://www.quesabesde.com/noticias/carl-zeiss-zk-pentax,1_3449

It seems that there will be the MF models already available for Nikon:
Planar 50 mm f1.4 in August
Later ZK Planar 85 mm
f1.4 and Distagon 25 mm f2.8 and 35 mm f2

At the end of the year, Makro-Planar 50 mm f2 and 100 mm f2

Regards,
Jaume





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Re: New Carl Zeiss lenses for Pentax K mount!

2007-07-03 Thread Godfrey DiGiorgi
These lenses are wonderful performers in Nikon mount and should be  
equally wonderful in Pentax mount.

The only downside is that it would be very nice indeed to see them  
support the Pentax KA mount rather than just the K mount  
specification. That would lend much more functionality to the Pentax  
DSLRs metering operations.

Godfrey


On Jul 3, 2007, at 8:08 AM, Jaume Lahuerta wrote:

 I have just seen this in a Spanish (reliable) site:
 http://www.quesabesde.com/noticias/carl-zeiss-zk-pentax,1_3449

 It seems that there will be the MF models already available for Nikon:
 Planar 50 mm f1.4 in August
 Later ZK Planar 85 mm
 f1.4 and Distagon 25 mm f2.8 and 35 mm f2

 At the end of the year, Makro-Planar 50 mm f2 and 100 mm f2


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Re: New Carl Zeiss lenses for Pentax K mount!

2007-07-03 Thread Wilko Bulte
On Tue, Jul 03, 2007 at 08:08:51AM -0700, Jaume Lahuerta wrote..
 I have just seen this in a Spanish (reliable) site:
 http://www.quesabesde.com/noticias/carl-zeiss-zk-pentax,1_3449

You can have it automatically translated in a (sort of) English
by working via http://babelfish.altavista.com

 It seems that there will be the MF models already available for Nikon:
 Planar 50 mm f1.4 in August
 Later ZK Planar 85 mm
 f1.4 and Distagon 25 mm f2.8 and 35 mm f2
 
 At the end of the year, Makro-Planar 50 mm f2 and 100 mm f2

Prices would be interesting to know  :)

Wilko

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Re: New Carl Zeiss lenses for Pentax K mount!

2007-07-03 Thread Godfrey DiGiorgi

On Jul 3, 2007, at 10:28 AM, Wilko Bulte wrote:

 It seems that there will be the MF models already available for  
 Nikon:
 Planar 50 mm f1.4 in August
 Later ZK Planar 85 mm
 f1.4 and Distagon 25 mm f2.8 and 35 mm f2

 At the end of the year, Makro-Planar 50 mm f2 and 100 mm f2

 Prices would be interesting to know  :)

US prices should be pretty similar to the Nikon mount versions of  
these lenses, which are all listed at BH Photo's website. Roughly  
$500-2000 apiece, average around $900-1000 apiece.

Godfrey

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Re: New Carl Zeiss lenses for Pentax K mount!

2007-07-03 Thread Wilko Bulte
On Tue, Jul 03, 2007 at 10:55:15AM -0700, Godfrey DiGiorgi wrote..
 
 On Jul 3, 2007, at 10:28 AM, Wilko Bulte wrote:
 
  It seems that there will be the MF models already available for  
  Nikon:
  Planar 50 mm f1.4 in August
  Later ZK Planar 85 mm
  f1.4 and Distagon 25 mm f2.8 and 35 mm f2
 
  At the end of the year, Makro-Planar 50 mm f2 and 100 mm f2
 
  Prices would be interesting to know  :)
 
 US prices should be pretty similar to the Nikon mount versions of  
 these lenses, which are all listed at BH Photo's website. Roughly  
 $500-2000 apiece, average around $900-1000 apiece.

Pricy, but to be expected from Zeiss.  Ah well.. I'll stick to my
Zeiss glass in Hasselblad mount then :-)

Wilko

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Re: New Carl Zeiss lenses for Pentax K mount!

2007-07-03 Thread pnstenquist
Excellent! Now I just have to win the lottery.
Paul
 -- Original message --
From: Mark Roberts [EMAIL PROTECTED]
 Godfrey DiGiorgi wrote:
 
 These lenses are wonderful performers in Nikon mount and should be  
 equally wonderful in Pentax mount.
 
 The only downside is that it would be very nice indeed to see them  
 support the Pentax KA mount rather than just the K mount  
 specification. That would lend much more functionality to the Pentax  
 DSLRs metering operations.
 
 From the DP Review Pentax forum:
 Rodolfo Biber clarifies that these new objectives with mount K are 
 compatible with standard SMC-A and that, therefore, can work with the 
 automatism of speed and diaphragm of the body of the camera.
 
 
 
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Re: New Carl Zeiss lenses for Pentax K mount!

2007-07-03 Thread Mark Roberts
Godfrey DiGiorgi wrote:

These lenses are wonderful performers in Nikon mount and should be  
equally wonderful in Pentax mount.

The only downside is that it would be very nice indeed to see them  
support the Pentax KA mount rather than just the K mount  
specification. That would lend much more functionality to the Pentax  
DSLRs metering operations.

From the DP Review Pentax forum:
Rodolfo Biber clarifies that these new objectives with mount K are 
compatible with standard SMC-A and that, therefore, can work with the 
automatism of speed and diaphragm of the body of the camera.



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Re: New Carl Zeiss lenses for Pentax K mount!

2007-07-03 Thread Toralf Lund

 [ ... ]
 The only downside is that it would be very nice indeed to see them  
 support the Pentax KA mount rather than just the K mount  
 specification. That would lend much more functionality to the Pentax  
 DSLRs metering operations.
   
They way I understand the last paragraph on the web page, the lenses 
will indeed be KA mount. I don't necessarily claim to be fluent in 
Spanish, though...

- Toralf


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Re: New Carl Zeiss lenses for Pentax K mount!

2007-07-03 Thread Adam Maas
Toralf Lund wrote:
 [ ... ]
 The only downside is that it would be very nice indeed to see them  
 support the Pentax KA mount rather than just the K mount  
 specification. That would lend much more functionality to the Pentax  
 DSLRs metering operations.
   
 They way I understand the last paragraph on the web page, the lenses 
 will indeed be KA mount. I don't necessarily claim to be fluent in 
 Spanish, though...
 
 - Toralf
 
 

Which is good news. An actually available 85/1.4 (although one that is 
inferior to the Pentax SMC-A version), a couple of superb macros, a 35/2 
, a 50 that's not really worth bothering with (While the 50 has been a 
big hit in Nikon-land, that's only because the Nikon 50/1.4 is fairly 
average in performance not because the Zeiss is legendary in its 
performance. I'd rather a Pentax 50/1.4 than the Zeiss) and a superb 
25/2.8 (which is really the gem of the current Zeiss line of 35mm SLR 
lenses).

-Adam

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Re: New Carl Zeiss lenses for Pentax K mount!

2007-07-03 Thread Bertil Holmberg
Any views on Zeiss 85mm f/1.4 glass vs the Pentax version(s)?

Regards,
Bertil

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Re: New Carl Zeiss lenses for Pentax K mount!

2007-07-03 Thread Adam Maas
Bertil Holmberg wrote:
 Any views on Zeiss 85mm f/1.4 glass vs the Pentax version(s)?
 
 Regards,
 Bertil
 

I think it was 16-9.net that posted a comparison of fast 85's. The SMC-A 
and Canon f1.2L essentially tied for 1st place. The Zeiss comes in 
behind the Nikkor AI-S (and therefore behind the Nikkor AF-D which 
outperforms the AI-S version). Essentially it's a very good lens that 
happens to be the worst of the current lot.

-Adam

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Re: New Carl Zeiss lenses for Pentax K mount!

2007-07-03 Thread Digital Image Studio
On 04/07/07, Adam Maas [EMAIL PROTECTED] wrote:

 Which is good news. An actually available 85/1.4 (although one that is
 inferior to the Pentax SMC-A version), a couple of superb macros, a 35/2
 , a 50 that's not really worth bothering with (While the 50 has been a
 big hit in Nikon-land, that's only because the Nikon 50/1.4 is fairly
 average in performance not because the Zeiss is legendary in its
 performance. I'd rather a Pentax 50/1.4 than the Zeiss) and a superb
 25/2.8 (which is really the gem of the current Zeiss line of 35mm SLR
 lenses).

At the very least I can see the CZ 50/2 macro replacing a handful of
my Pentax 50mm lenses, so it shouldn't cost too much in the end.

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Re: New Carl Zeiss lenses for Pentax K mount!

2007-07-03 Thread Adam Maas
Digital Image Studio wrote:
 On 04/07/07, Adam Maas [EMAIL PROTECTED] wrote:
 
 Which is good news. An actually available 85/1.4 (although one that is
 inferior to the Pentax SMC-A version), a couple of superb macros, a 35/2
 , a 50 that's not really worth bothering with (While the 50 has been a
 big hit in Nikon-land, that's only because the Nikon 50/1.4 is fairly
 average in performance not because the Zeiss is legendary in its
 performance. I'd rather a Pentax 50/1.4 than the Zeiss) and a superb
 25/2.8 (which is really the gem of the current Zeiss line of 35mm SLR
 lenses).
 
 At the very least I can see the CZ 50/2 macro replacing a handful of
 my Pentax 50mm lenses, so it shouldn't cost too much in the end.
 

For me, the most interesting is the 25/2.8(in ZF form though). But 
that's a bread  butter focal length for me. The 50/2 does look 
interesting as a replacement for a few 50's, but I need speed more than 
the macro capability at that length.

-Adam

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Re: New Carl Zeiss lenses for Pentax K mount!

2007-07-03 Thread John Sessoms
From:
Bertil Holmberg
 Any views on Zeiss 85mm f/1.4 glass vs the Pentax version(s)?

 Regards,
 Bertil 
Or the Zeiss 25mm f/2.8 vs. Pentax SMCP-A 24mm f/2.8?


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Re: New Carl Zeiss lenses for Pentax K mount!

2007-07-03 Thread Godfrey DiGiorgi

On Jul 3, 2007, at 8:18 PM, John Sessoms wrote:

 Any views on Zeiss 85mm f/1.4 glass vs the Pentax version(s)?

 Or the Zeiss 25mm f/2.8 vs. Pentax SMCP-A 24mm f/2.8?

Having had the Pentax-A lens, and based on the stuff I've seen with  
the Zeiss, I'd take the Zeiss.

Besides, you can't buy an SMC Pentax-A 24mm f/2.8 new anywhere that I  
know of.

G


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Re: New Carl Zeiss lenses for Pentax K mount!

2007-07-03 Thread Adam Maas
John Sessoms wrote:
 From:
 Bertil Holmberg
 Any views on Zeiss 85mm f/1.4 glass vs the Pentax version(s)?

 Regards,
 Bertil 
 Or the Zeiss 25mm f/2.8 vs. Pentax SMCP-A 24mm f/2.8?
 
 

The testing I've seen on the Zeiss indicates it's notably better in 
performance than the Nikkor 24/2.8 AI-S. I've not owned the Pentax (it's 
lack of availability was one reason I went back to Nikon kit as my 
primary choice) but the test shots I've seen indicate it's maybe a match 
for the Nikkor but not for the Zeiss.

-Adam

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FS: Pentax K-mount lenses

2007-02-16 Thread John Celio
SMC Pentax-M 50mm 1.4 with hood - $37 (obo)
This lens is in excellent exterior condition.  The glass is scratch-free 
but has some minor dust under the first element (does not affect images).  I 
used this lens for years with my MX and *istD, and even shot a couple 
concerts with it.  It's a fantastic performer.  Hood is Pentax-brand, but 
may not be the original that came with the lens.  Caps are not original, and 
front cap has a cap-keeper strap on it.


SMC Pentax-A 28mm 2.8 with hood - $37 (obo)
The body of this lens is near-mint, and the optics are scratch-free, but 
there is dust inside the main element.  It may be possible to open the lens 
and clean it, but I don't want to risk the operation myself.  The hood and 
rear cap are by Pentax, but may not be original.  The front cap is not 
original.


SMC Pentax 35-70mm f2.8 (Pentax's 1st AF lens, collector's item) - $127 
(obo)
This lens is pretty rare.  However, there's some dust inside the front 
and rear elements.  This may be easily cleaned, but I don't want to risk it 
myself.  Also, I haven't been able to find an ME-F to test the lens' 
autofocus.  Otherwise, lens body is near-mint, with some scuff marks on the 
front of the motor housing.  The battery contacts are clean, with no signs 
of battery corrosion.  Can't find a front cap for it, and the rear cap is 
non-original.


John

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FS: DOI 2X teleconverter for Pentax K mount

2006-12-11 Thread Colin J
For sale:

DOI 2X teleconverter for Pentax K mount.  

Near mint condition, possibly unused.  Comes with original front and rear caps 
and leatherette case.

This was an exceptionally good teleconverter, thought by many to be the best 
that was ever made for Pentax lenses.  It received excellent reviews.  It is 
compatible with almost all Pentax K lenses, but obviously in manual focus mode 
with AF lenses.

Located in UK, will post to UK, Europe, USA, Canada, Australia, NZ and Japan.


Offers by private email please, before it goes on that auction site.  
Insured airmail postage at cost.

Colin J




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Pentax K-mount bayonet wanted

2006-02-10 Thread Krisjanis Linkevics
I have been out of luck trying to obtain a K-mount bayonet for my project 
camera. Surprisingly Ebay prices are quite high even for old and broken 
cameras. Keh offers a good selection of broken bodies but their shipping 
rates to Europe are a pain. Maybe someone here on the list has either the 
mount or a camera they would be willing to part with? Water damage, drops 
from high altitudes, anything goes. I need only the mount part with or 
without lens release.

Krisjanis



Re: Pentax K-mount bayonet wanted

2006-02-10 Thread Rob Studdert
On 10 Feb 2006 at 11:57, Krisjanis Linkevics wrote:

 I have been out of luck trying to obtain a K-mount bayonet for my project 
 camera. Surprisingly Ebay prices are quite high even for old and broken 
 cameras. Keh offers a good selection of broken bodies but their shipping 
 rates to Europe are a pain. Maybe someone here on the list has either the 
 mount or a camera they would be willing to part with? Water damage, drops 
 from high altitudes, anything goes. I need only the mount part with or 
 without lens release.

Have you considered butchering a cheap third party teleconvertor or a set of 
tubes?


Rob Studdert
HURSTVILLE AUSTRALIA
Tel +61-2-9554-4110
UTC(GMT)  +10 Hours
[EMAIL PROTECTED]
http://members.ozemail.com.au/~distudio/publications/
Pentax user since 1986, PDMLer since 1998



Re: Pentax K-mount bayonet wanted

2006-02-10 Thread Lucas Rijnders

Op Fri, 10 Feb 2006 10:57:44 +0100 schreef Krisjanis Linkevics
[EMAIL PROTECTED]:


I have been out of luck trying to obtain a K-mount bayonet for my project
camera. Surprisingly Ebay prices are quite high even for old and broken
cameras. Keh offers a good selection of broken bodies but their shipping
rates to Europe are a pain. Maybe someone here on the list has either the
mount or a camera they would be willing to part with? Water damage, drops
from high altitudes, anything goes. I need only the mount part with or
without lens release.


Hi Krisjanis,

Ebay Germany has a special area for broken camera's, did you check? As far
as I can see, you should be able to find an M-series for under €10,-. It's
just the Z-1's, MX-en and MZ-5n's that fetch good prices in broken state...

See
http://foto.search.ebay.de/pentax_Spiegelreflexkameras_W0QQbsZFindenQQcatrefZC6QQfgtpZQQfromZR2QQfsooZ1QQfsopZ1QQftrtZ1QQftrvZ1QQlopgZQQsacatZ29006QQsaprchiZQQsaprcloZQQsaslcZ3QQsbrftogZ1QQsofocusZunknown

or
http://tinyurl.com/c4quf

Hope this helps,
--
Regards, Lucas



Re: Pentax K-mount bayonet wanted

2006-02-10 Thread John Whittingham
I think I may have one from a broken ME Super you could have, I'm in the UK.

John

John Whittingham

Technician

you can't be optimistic with a misty optic

-- Original Message ---
From: Krisjanis Linkevics [EMAIL PROTECTED]
To: pentax-discuss@pdml.net
Sent: Fri, 10 Feb 2006 11:57:44 +0200
Subject: Pentax K-mount bayonet wanted

 I have been out of luck trying to obtain a K-mount bayonet for my 
 project camera. Surprisingly Ebay prices are quite high even for old 
 and broken cameras. Keh offers a good selection of broken bodies but 
 their shipping rates to Europe are a pain. Maybe someone here on the 
 list has either the mount or a camera they would be willing to part 
 with? Water damage, drops from high altitudes, anything goes. I need 
 only the mount part with or without lens release.
 
 Krisjanis
--- End of Original Message ---



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Re: Pentax K-mount bayonet wanted

2006-02-10 Thread John Francis
On Fri, Feb 10, 2006 at 11:57:44AM +0200, Krisjanis Linkevics wrote:
 I have been out of luck trying to obtain a K-mount bayonet for my project 
 camera. Surprisingly Ebay prices are quite high even for old and broken 
 cameras. Keh offers a good selection of broken bodies but their shipping 
 rates to Europe are a pain. Maybe someone here on the list has either the 
 mount or a camera they would be willing to part with? Water damage, drops 
 from high altitudes, anything goes. I need only the mount part with or 
 without lens release.

If that's all you need, then why not just buy a cheap teleconverter?



Re: Pentax K-mount bayonet wanted

2006-02-10 Thread Thibouille
I could send ya a Ricoh KR-10X if you want that.
Made good pics but such a plastic crap it isn't fun to use it at all.

Where are you located?

--
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--
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Re: Pentax K-mount bayonet wanted

2006-02-10 Thread Cotty
On 10/2/06, Krisjanis Linkevics, discombobulated, unleashed:

I have been out of luck trying to obtain a K-mount bayonet for my project 
camera. Surprisingly Ebay prices are quite high even for old and broken 
cameras. Keh offers a good selection of broken bodies but their shipping 
rates to Europe are a pain. Maybe someone here on the list has either the 
mount or a camera they would be willing to part with? Water damage, drops 
from high altitudes, anything goes. I need only the mount part with or 
without lens release.

Suggestion: look out for some cheap extension tubes :-)




Cheers,
  Cotty


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GREAT Pentax K mount 28-85 lenses for sale

2003-11-28 Thread J. C. O'Connell
Auctions end saturday:

http://jcoconnell.com/JCO_AUCT.HTM

Later,
JCO


   J.C. O'Connell   mailto:[EMAIL PROTECTED]   http://jcoconnell.com




Re: Pentax k-mount

2003-06-09 Thread Lon Williamson
Without technical documentation, you're going to have to figure
out IO addressing, how interrupts work, etc, all on your own.
I don't think a week is enough time.  Did the same thing myself
once on a breath alcohol tester on which all source code/documentation
had been lost.  Just resolving code from data took me about a week,
and that was with a fairly expensive disassembler as a tool.
T Rittenhouse wrote:
Humm?

Been a long time since I did machine code programing. But since the firmware
for the camera is undoubtedly in CMOS or EEPROM these days. It would just be
a case of copying it out. Mucking around until you found the proper place in
the code, inserting a call to your code (tacked on to the end of the
existing software) and copying the new firmware back to the camera. No need
to mess with the existing code except the place where you put the call. If
you need to keep the code you replaced with the call, you add it to your new
code so the call takes you to it also.
Most of your time will be spent dissassembling the old code to find the jump
point you need. I admit his 15 minutes is optimistic, but a man-week sounds
reasonable, and that would be worthwhile.
Ciao,
Graywolf
http://pages.prodigy.net/graywolfphoto
- Original Message -
From: Lon Williamson [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Sunday, June 08, 2003 5:57 AM
Subject: Re: Pentax k-mount


Arnold, be careful with that.  Figuring out how to add such a thing
when messing with a binary image is no 15 minute job on _this_ side of
the factory.  Been there, done that, weeks are involved
-Lon

Arnold Stark wrote:

I won't either buy a Nikon or Canon DSLR. If Pentax does not hear us and
does not offer better compatibilty on a DSLR that I can afford, then I
will either buy a better film scanner, or I will wait for Cosina to
bring a DSLR in true k-mount. Or I willpull out the memory chip and
reprogram that *ist D camera myself. It can' take more than 15 minutes
to implement metering in manual mode with DOF preview activated.








Re: Pentax k-mount

2003-06-09 Thread Lon Williamson
I cracked a game once myself (on a dare from a hardware type
who thought it could not be done).  The NOPs (plural, note)
 needed to be placed in several subroutine overlays that came
into memory XOR-ROTATED, the game repeatedly clobbered all
the interrupt vectors the debugger depended on, etc.  Took me
three days.  This stuff is NOT always easy, folks.
Thomas Haller wrote:
Reminds me of watching a guy at work replacing in turn each JP command 
in a game with a NOP to get around the reg code check. Took hardly any 
time and it was boringly sinple...

On Sunday, June 8, 2003, at 09:13  AM, T Rittenhouse wrote:

Mucking around until you found the proper place in
the code, inserting a call to your code (tacked on to the end of the
existing software)







Re: Pentax k-mount

2003-06-09 Thread Lon Williamson
Hell, that ain't even new.  Most microcontrollers
have had a model or two with code protection since
the 80s.
Rob Studdert wrote:
On 8 Jun 2003 at 14:20, [EMAIL PROTECTED] wrote:


And that there are any bytes left over in the address space
to stick the new code into.  (Of the two, recognizing the
JMP instructions is the more easily solvable.  How many
different embedded controllers are in common use these
days?  ID the controller and look it up, or try different
interpretations of the code until you find one that starts
making sense.)


Many late microcontrollers have on-board EEPROMs and code protection security. 
I've just been down this path with a W78E58.

Rob Studdert
HURSTVILLE AUSTRALIA
Tel +61-2-9554-4110
UTC(GMT)  +10 Hours
[EMAIL PROTECTED]
http://members.ozemail.com.au/~distudio/publications/
Pentax user since 1986, PDMLer since 1998





Re: Pentax k-mount

2003-06-09 Thread Keith Whaley
Talk about dumb smart machines, once a fella had reported frequent and
unremitting fax calls that didn't download any faxes. This went on for a
long time before he finally insisted the phone company check it out.
To make a longer story short, it was determined the phone calls came
from an unattended public Coke machine, somewhere out in the desert,
trying vainly to tell it's keeper that it was out of product! g
Can you believe it?
Set it up with an autodialer, and ignore whatever it says...

The Coke machine worked okay, the people didn't!

keith whaley

Alan Chan wrote:
 
 Since most 30 year old appliances fulfill their purposes more
 than adequately why would one want a networked refrigerator let
 alone a wireless one?  On second thought I don't want to know.

 Not to mention you'll need to install firewall, viruscan, and all other
 craps just to keep it from being hacked. Imagine the foods ordered by your
 refrigerator, were delivered to your neighborhood, quietly...  :-)
 
 regards,
 Alan Chan



Re: OT fridges (was Re: Pentax k-mount

2003-06-09 Thread Cotty
   Worse it might not stop with death. You know the stories about people
who die 
and nobody notices? 

Nick, I work with some of these people!



Cheers,
  Cotty


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Re: Pentax k-mount

2003-06-09 Thread Peter Alling
Properly done it would be like having a efficient butler for a fraction of
the cost, but without the enjoyment of mistreating the hired help, or the
possibility of extra profits for the help from petty theft.
At 11:59 PM 6/8/03 -0700, you wrote:
Sounds like the machines were controlling the life of human. Scary idea...

regards,
Alan Chan
The common suggestion would be they would keep track of  what was in the 
fridge. Re-ordering from your internet supermarket. Telling you when the 
milk was going bad. They would connect with the microwave and share info. 
Say you made something in the microwave it would tell the fridge to add 
it to the order.
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Re: Pentax k-mount

2003-06-09 Thread Nick Zentena
On June 9, 2003 10:08 am, Fred wrote:
  So toasters and coffee makers hold conversations while I`m
  sleeping?

 Yes - the caffeine keeps the coffee makers up all night, and so then
 they pester the toasters into staying awake...


It's because the toasters are so hot-)))

Nick



Re: OT fridges (was Re: Pentax k-mount

2003-06-09 Thread Nick Zentena
On June 9, 2003 09:38 am, Cotty wrote:
  Worse it might not stop with death. You know the stories about people
 who die
 and nobody notices?

 Nick, I work with some of these people!


Do they still get paid?-)))

Nick



Re: Pentax k-mount

2003-06-09 Thread Nick Zentena
On June 8, 2003 11:07 pm, Peter Alling wrote:
 It seemed just as silly then as it does now, and I'm a software engineer.

I wonder if they ever built the subdivision that was announced around 1999.

Nick



Re: OT fridges (was Re: Pentax k-mount

2003-06-09 Thread Cotty
 Worse it might not stop with death. You know the stories about people
 who die
 and nobody notices?

 Nick, I work with some of these people!


   Do they still get paid?-)))

I think their widows do..

God this is getting morbid. Time to go pull a CF card from the fridge and
do some shooting!


Cheers,
  Cotty


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Re: Pentax k-mount

2003-06-08 Thread T Rittenhouse
Humm?

Been a long time since I did machine code programing. But since the firmware
for the camera is undoubtedly in CMOS or EEPROM these days. It would just be
a case of copying it out. Mucking around until you found the proper place in
the code, inserting a call to your code (tacked on to the end of the
existing software) and copying the new firmware back to the camera. No need
to mess with the existing code except the place where you put the call. If
you need to keep the code you replaced with the call, you add it to your new
code so the call takes you to it also.

Most of your time will be spent dissassembling the old code to find the jump
point you need. I admit his 15 minutes is optimistic, but a man-week sounds
reasonable, and that would be worthwhile.

Ciao,
Graywolf
http://pages.prodigy.net/graywolfphoto


- Original Message -
From: Lon Williamson [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Sunday, June 08, 2003 5:57 AM
Subject: Re: Pentax k-mount


 Arnold, be careful with that.  Figuring out how to add such a thing
 when messing with a binary image is no 15 minute job on _this_ side of
 the factory.  Been there, done that, weeks are involved

 -Lon

 Arnold Stark wrote:
  I won't either buy a Nikon or Canon DSLR. If Pentax does not hear us and
  does not offer better compatibilty on a DSLR that I can afford, then I
  will either buy a better film scanner, or I will wait for Cosina to
  bring a DSLR in true k-mount. Or I willpull out the memory chip and
  reprogram that *ist D camera myself. It can' take more than 15 minutes
  to implement metering in manual mode with DOF preview activated.





Re: Pentax k-mount

2003-06-08 Thread Thomas Haller
Reminds me of watching a guy at work replacing in turn each JP command 
in a game with a NOP to get around the reg code check. Took hardly any 
time and it was boringly sinple...

On Sunday, June 8, 2003, at 09:13  AM, T Rittenhouse wrote:

Mucking around until you found the proper place in
the code, inserting a call to your code (tacked on to the end of the
existing software)



Re: Pentax k-mount

2003-06-08 Thread Herb Chong
assuming you can get access to the documentation on the processor's instruction set, 
registers, and the control registers of the various parts of the camera. if you don't 
have that, it would take a lot more 15 minutes.

Herb...
- Original Message - 
From: T Rittenhouse [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Sunday, June 08, 2003 12:13
Subject: Re: Pentax k-mount


 Been a long time since I did machine code programing. But since the firmware
 for the camera is undoubtedly in CMOS or EEPROM these days. It would just be
 a case of copying it out. Mucking around until you found the proper place in
 the code, inserting a call to your code (tacked on to the end of the
 existing software) and copying the new firmware back to the camera. No need
 to mess with the existing code except the place where you put the call. If
 you need to keep the code you replaced with the call, you add it to your new
 code so the call takes you to it also.
 




Re: Pentax k-mount

2003-06-08 Thread Herb Chong
you assume you can recognize a Jump instruction.

Herb
- Original Message - 
From: Thomas Haller [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Sunday, June 08, 2003 12:33
Subject: Re: Pentax k-mount


 Reminds me of watching a guy at work replacing in turn each JP command 
 in a game with a NOP to get around the reg code check. Took hardly any 
 time and it was boringly sinple...




Re: Pentax k-mount

2003-06-08 Thread [EMAIL PROTECTED]
Herb Chong commented:
 you assume you can recognize a Jump instruction.

And that there are any bytes left over in the address space
to stick the new code into.  (Of the two, recognizing the
JMP instructions is the more easily solvable.  How many
different embedded controllers are in common use these
days?  ID the controller and look it up, or try different
interpretations of the code until you find one that starts
making sense.)

-- Glenn



Re: Pentax k-mount

2003-06-08 Thread Herb Chong
15 minutes work like originally asserted? they make enough cameras to make custom 
microcontrollers.

Herb
- Original Message - 
From: [EMAIL PROTECTED] [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Sunday, June 08, 2003 14:20
Subject: Re: Pentax k-mount


 Herb Chong commented:
  you assume you can recognize a Jump instruction.
 
 And that there are any bytes left over in the address space
 to stick the new code into.  (Of the two, recognizing the
 JMP instructions is the more easily solvable.  How many
 different embedded controllers are in common use these
 days?  ID the controller and look it up, or try different
 interpretations of the code until you find one that starts
 making sense.)




Re: Pentax k-mount

2003-06-08 Thread Peter Alling
Sounds about right to me as well, if he's really lucky the whole thing is 
programmed
in Java, it was originally designed as a language for toaster ovens.

At 12:13 PM 6/8/03 -0400, you wrote:
Humm?

Been a long time since I did machine code programing. But since the firmware
for the camera is undoubtedly in CMOS or EEPROM these days. It would just be
a case of copying it out. Mucking around until you found the proper place in
the code, inserting a call to your code (tacked on to the end of the
existing software) and copying the new firmware back to the camera. No need
to mess with the existing code except the place where you put the call. If
you need to keep the code you replaced with the call, you add it to your new
code so the call takes you to it also.
Most of your time will be spent dissassembling the old code to find the jump
point you need. I admit his 15 minutes is optimistic, but a man-week sounds
reasonable, and that would be worthwhile.
Ciao,
Graywolf
http://pages.prodigy.net/graywolfphoto
- Original Message -
From: Lon Williamson [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Sunday, June 08, 2003 5:57 AM
Subject: Re: Pentax k-mount
 Arnold, be careful with that.  Figuring out how to add such a thing
 when messing with a binary image is no 15 minute job on _this_ side of
 the factory.  Been there, done that, weeks are involved

 -Lon

 Arnold Stark wrote:
  I won't either buy a Nikon or Canon DSLR. If Pentax does not hear us and
  does not offer better compatibilty on a DSLR that I can afford, then I
  will either buy a better film scanner, or I will wait for Cosina to
  bring a DSLR in true k-mount. Or I willpull out the memory chip and
  reprogram that *ist D camera myself. It can' take more than 15 minutes
  to implement metering in manual mode with DOF preview activated.

Outside of a dog, a book is man's best friend.
Inside of a dog, it's too dark to read.  --Groucho Marx


Re: Pentax k-mount

2003-06-08 Thread Herb Chong
you haven't seen the Bluetooth-enabled Toshiba refrigerator.

Herb
- Original Message - 
From: Peter Alling [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Sunday, June 08, 2003 21:11
Subject: Re: Pentax k-mount


 Well no, probably not.  However Java was designed for embedded software 
 systems.
 Truthfully I haven't seen a toaster over or coffee maker complicated enough to
 need embedded systems but then I haven't taken a modern one apart.




Re: Pentax k-mount

2003-06-08 Thread Peter Alling
Since most 30 year old appliances fulfill their purposes more
than adequately why would one want a networked refrigerator let
alone a wireless one?  On second thought I don't want to know.
At 09:28 PM 6/8/03 -0400, you wrote:
you haven't seen the Bluetooth-enabled Toshiba refrigerator.

Herb
- Original Message -
From: Peter Alling [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Sunday, June 08, 2003 21:11
Subject: Re: Pentax k-mount
 Well no, probably not.  However Java was designed for embedded software
 systems.
 Truthfully I haven't seen a toaster over or coffee maker complicated 
enough to
 need embedded systems but then I haven't taken a modern one apart.
Outside of a dog, a book is man's best friend.
Inside of a dog, it's too dark to read.  --Groucho Marx


Re: Pentax k-mount

2003-06-08 Thread Nick Zentena
On June 8, 2003 10:19 pm, Peter Alling wrote:
 Since most 30 year old appliances fulfill their purposes more
 than adequately why would one want a networked refrigerator let
 alone a wireless one?  On second thought I don't want to know.


The common suggestion would be they would keep track of what was in the 
fridge. Re-ordering from your internet supermarket. Telling you when the milk 
was going bad. They would connect with the microwave and share info. Say you 
made something in the microwave it would tell the fridge to add it to the 
order.

Much of this was during the tech boom when money was being thrown at 
anything. 

Nick



Re: Pentax k-mount

2003-06-08 Thread Caveman
Peter Alling wrote:
Since most 30 year old appliances fulfill their purposes more
than adequately why would one want a networked refrigerator let
alone a wireless one?  
Because they're really cool ;-)

cheers,
caveman


OT fridges (was Re: Pentax k-mount

2003-06-08 Thread Caveman
Nick Zentena wrote:
	The common suggestion would be they would keep track of what was in the 
fridge. Re-ordering from your internet supermarket. 
C'mon. So if I buy by mistake the wrong film and I keep it in the fridge 
 some time before using or trashing it, the fridge will keep reordering 
the stuff until my death ? Scary.

cheers,
caveman


Re: OT fridges (was Re: Pentax k-mount

2003-06-08 Thread Nick Zentena
On June 8, 2003 10:40 pm, Caveman wrote:
 Nick Zentena wrote:
  The common suggestion would be they would keep track of what was in the
  fridge. Re-ordering from your internet supermarket.

 C'mon. So if I buy by mistake the wrong film and I keep it in the fridge
   some time before using or trashing it, the fridge will keep reordering
 the stuff until my death ? Scary.


Worse it might not stop with death. You know the stories about people who die 
and nobody notices? Well the fridge would keep stocking up on  things. I 
guess the person dropping them off would start to wonder.

Nick



Re: Pentax k-mount

2003-06-08 Thread Rob Studdert
On 8 Jun 2003 at 14:20, [EMAIL PROTECTED] wrote:

 And that there are any bytes left over in the address space
 to stick the new code into.  (Of the two, recognizing the
 JMP instructions is the more easily solvable.  How many
 different embedded controllers are in common use these
 days?  ID the controller and look it up, or try different
 interpretations of the code until you find one that starts
 making sense.)

Many late microcontrollers have on-board EEPROMs and code protection security. 
I've just been down this path with a W78E58.

Rob Studdert
HURSTVILLE AUSTRALIA
Tel +61-2-9554-4110
UTC(GMT)  +10 Hours
[EMAIL PROTECTED]
http://members.ozemail.com.au/~distudio/publications/
Pentax user since 1986, PDMLer since 1998



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