Way OT: electronic components req'd

2001-06-26 Thread David A. Mann

Hi guys,

 Since there seem to be a few of us who are either electrical engineers or are 
into electronics in some way I thought I might ask for some help here.

 I'm starting to look into a DAC project and I think I've just about settled on the 
parts I want to use, but I'm having trouble trying to find a supplier.  The parts in 
question are:

Crystal Semiconductor CS8412 (digital input chip),
Burr-Brown DF-1704 (oversampling filter),
Burr-Brown PCM-1704 (DAC chip).

 Crystal Semi is owned by Cirrus, and Burr-Brown is owned by Texas 
Instruments, if this helps.  I may also be after some exotic Burr-Brown op-
amps for the output filter but I've left my datasheets at work so I'll skip those for 
now.

 If anyone does find these devices, let me know privately.  I'll need to know the 
price as well as any minimum order quantity.

Cheers,


- Dave

David A. Mann, B.E. (Elec)
http://www.digistar.com/~dmann/

"Why is it that if an adult behaves like a child they lock him up,
 while children are allowed to run free on the streets?" -- Garfield
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Re: Macro lens: Some insight needed!

2001-06-26 Thread William Robb


- Original Message -
From: "petit miam" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: June 26, 2001 11:42 PM
Subject: Re: Macro lens: Some insight needed!


> Please explain the term "alien-sensitive".

Thats when, like, a guy with a weird forehead (or a guy with
four weird heads) taps you on the shoulder, and you scream and
run away.
William Robb

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Re: Macro lens: Some insight needed!

2001-06-26 Thread Chris Brogden

On Tue, 26 Jun 2001, petit miam wrote:

> Please explain the term "alien-sensitive".

Sensitive to the presence of alien things (alien being anything that's not
part of its normal environment or day-to-day experiences).  In this case,
it refers to people.

chris

 
> > I just need to know one thing. Have you ever used
> > that lens in
> > photographing "alien sensitive insects", like
> > butterflies and bees?

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Re: Pentax FA 35mm 1:2

2001-06-26 Thread Gerald F. Cermak

It has a cool looking tulip hood.  The pictures are fabulous.  You will like
it.

- Original Message -
From: "Jon Hope" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, June 26, 2001 9:43 PM
Subject: Pentax FA 35mm 1:2


> Hi all
>
> Does anyone use this lens? I am seriously contemplating buying one (ok, I
> have already ordered it, I get it next Wednesday). I really want some
> feedback on it.
>
> Cheers
>
>
> Jon
>
> Relax! Take life as it comes, you can't chase the sun, you can't race the
wind
>
> -
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Re: Macro lens: Some insight needed!

2001-06-26 Thread petit miam

Please explain the term "alien-sensitive".

> I just need to know one thing. Have you ever used
> that lens in
> photographing "alien sensitive insects", like
> butterflies and bees?

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Re: Macro lens: Some insight needed!

2001-06-26 Thread petit miam


> On Mon, 25 Jun 2001, petit miam wrote:
> 
> > 
> > --- Ayash Kanto Mukherjee
> > <[EMAIL PROTECTED]> wrote:
> > > Many thanks for your comments and views. I
> should
> > > keep my close-up filters
> > > aside in the corner of my darkroom and allow the
> > > dust to settle on it.
> > 
> > N!!
> 
> Why not? I want to know if you please.

  My COZO close-up filters are my favourite accessory.
I picked them up for a bargain NZ$25. Every time I
take my camera out I use them. I even keep them
attached to my camera. I photographed nearly every
wild-flower in Western Australia using them (on a
holiday there). And I got some amazing photos with
them.
  Also I got highly commended in a NZ-wide photo
competition run by Agfa about 6yrs ago. I entered a
photo taken with guess-what my close-up lenses.
  I have to admit I have never tried a macro lens, but
I know that nothing will ever make me give up my
close-up lenses. I think some of my best photos have
been taken with them.

> > Jody (whose silent scream was probably heard in
> China) 
> 
> What is the thing about China why your silent scream
> would ever reach
> there? I am inquisitive now if you don't mind.

  I was just trying to think of somewhere a very long
way away. As a child, we were told that if we dug a
hole through the earth we would end up in China. Now
that I am grown up, I have since found out it is
Spain, but there is still this idea of China being so
far away.

Jody.

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RE: Overlapping frames on MZ-S

2001-06-26 Thread petit miam

Surely if you know your camera, you can feel the gears
stripping themselves out. Then you can stop what
you're doing and wind the film back. I have never had
a problem with not getting an extra photo anyway, on
all my cameras SLR or non-SLR. And I have never
stripped the gears out. I think it is not so much the
length of the film as what you do with the start of
it. I never wind it on more than I need to before
closing the back. Just wind until you are sure it is
on the cogs properly. Then (on a manual wind only) you
can often sneak one photo in before your camera
actually says 1. A single wind-on is usually enough to
clear all the exposed film. Or you can do ½ wind
before you close the back, and 1½ after closing the
back.

Jody.

--- "Paris, Leonard" <[EMAIL PROTECTED]> wrote:
> Routinely getting extra frames is nice but suppose
> that you get a roll that
> is just a bit shorter than normal and you only have
> 36 1/2 frames.  The
> modern cameras would have no problem with this but
> some older cameras will
> strip their gears when a person tries to advance a
> frame past the end of the
> roll.  I don't know how many folks broke their
> cameras trying to squeeze out
> one more shot but it did cost more to fix the camera
> than a person could
> gain getting an extra frame or two.
> 
> So, the problem is not one that needs addressing,
> except at the user end.
> Just be aware of what you are doing and, if it
> happens again, you'll know
> why it happened.
> 
> Len


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Re: Ebay: is this for real?

2001-06-26 Thread John Mullan

I took a gander at the camera the seller has listed, and it wears an "Auto
Rikennon" lens, so maybe this isn't Asahi glass either.

John Mullan
-Original Message-
From: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
Date: Tuesday, June 26, 2001 4:15 AM
Subject: Re: Ebay: is this for real?


>Brent,
>
>The description is for the 49mm plastic hood fitted on the front of the
lens.
> The hood is originally for the M85/2 or M100/2.8.
>
>As others have said, the lens it is on looks much older and a screwmount
too.
>
>
>Regards,  Bob S.
>
>[EMAIL PROTECTED] writes:
>
><< http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=1249131626
>
> does the lens this guy is describing really existthe description
sounds
> like he's reading off of the lens hood and not the lens. I can't tell what
>is
> really there by the picture.  >>
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Pentax FA 35mm 1:2

2001-06-26 Thread Jon Hope

Hi all

Does anyone use this lens? I am seriously contemplating buying one (ok, I 
have already ordered it, I get it next Wednesday). I really want some 
feedback on it.

Cheers


Jon

Relax! Take life as it comes, you can't chase the sun, you can't race the wind

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Follow Up: Unsharp Mask

2001-06-26 Thread Paul Jones

Hi,

I have put some photos before and after i sharpened them at www.nrg666.com
any comments on the quality of my sharpening with these would be
appreciated.

they were scanned on a Microtek Scanmaster 4 from Sensia II 100. scanned at
2000dpi as tiffs then resized to 600dpi wide and saved as jpegs, i sharpened
them after they were resized.

Cyas
- Original Message -
From: "Paul Jones" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, June 27, 2001 1:33 PM
Subject: Unsharp Mask


> Hi,
>
> I have scanning some slides at work and then sharpening them to correct. I
> know most people use unsharp mask as opposed to sharpen. Why is that? and
> what setting do you use most of the time?
>
> Thanks,
> Paul Jones
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Re: Winder LX Question

2001-06-26 Thread Ron Whitmore



I have an mx winder that has the same lever on the left side, 
and it is for the film release for rewind.
Ron WhitmoreCentral New York[EMAIL PROTECTED]


Fwd: OT: Superb Photos from China

2001-06-26 Thread Doug Brewer

This came to me


>Date: Tue, 26 Jun 2001 07:16:21 -0700 (PDT)
>From: John Edwin Mason <[EMAIL PROTECTED]>
>Subject: OT: Superb Photos from China
>
>Hi, all.
>
>Someone on another list posted this URL today.  Takes
>you to amazingly beautiful, powerful photos (of
>awfully grim conditions) from China.  Astonishing
>photos, nice site design.  Well worth a look.
>
>(Who is this guy or gal?  Anyone know of him/her?)
>
>http://netcity4.web.hinet.net/userdata/lorne/
>
>The site's in Chinese, but it's pretty intuative to
>navigate.  There are seven sections, links to the
>sections are numbered at the bottom of each page. 
>Each section is a flash file from 1mb to 2.5mb, and
>has to load completely first before the slide show can
>start.
>
>Best, John
>
>=
>John Edwin Mason
>Charlottesville, Virginia
>Email:  [EMAIL PROTECTED]
>Alt Email:  [EMAIL PROTECTED]
-- 
Douglas Forrest Brewer
Ashwood Lake Photography
[EMAIL PROTECTED]
http://www.alphoto.com
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Re: Ebay Warning (Victim of Rip Off)

2001-06-26 Thread Paul Jones

I'd give him a ring. i did this with a lense i bought and the person never
responded to my emails. i rang him and he was just lazy. i bought one of
those cheap long distance calling cards to call him.


- Original Message -
From: "John Mustarde" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, June 27, 2001 12:41 PM
Subject: Re: Ebay Warning (Victim of Rip Off)


> >[EMAIL PROTECTED] wrote:
> >
> >> Hi, gang.
> >> About two months ago I bought a Super Program that I never received.
> >> The seller?
> >> jdcolour from Medicine Hat, Alberta, Canada.
> >> I thought 20 perfect feedback, being a store and being canadian were
good
> >> warranties. The truth is the camera never arrived. They don't answer my
> >> emails now and they were skilled as to make me wait enough as for me
being
> >> unable to use the ebay policy for rip off (form must be filled between
60
> >> days of close of auction). They told me to be patient, that they will
ask
> >> the canadian post office to investigate about the possible loss of the
> >> camera, that I must wait just a bit more. I waited as a saint. It was
my
> >> main error.
> >> Well, you are warned ( and I lost 155 usd)
> >>
> >> Albano
>
> I bought a lens from jdcolour of Alberta. The delivery
> was perfect. I actually spoke with a man on the phone
> at some point in the transaction.
>
> I believe they are decent folks. Hopefully they will
> make good on this at some point. Perhaps they are not
> yet convinced that there is a problem within their
> responsibility.
>
> Of course, I could be wrong about jdcolour. I once
> thought Pentax in Colorado was okay, based on one
> experience. But when my expensive lens was lost in
> shipping back from repair, Pentax in Colorado simply
> refused to file an insurance claim, leaving me holding
> the bag for a thousand bucks.
> --
> Happy Trails,
> Texdance
> http://members.fortunecity.com/texdance
> http://members1.clubphoto.com/john8202
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Re: Winder LX Question

2001-06-26 Thread Peter Alling

When you depress the rewind button on the bottom of the winder, (don't
push the battery release, you'll look like a dope when the batteries fall
out), pushing that lever to the right will power rewind the
film.
At 10:34 PM 6/26/2001 -0400, you wrote:
Greetings
all
 
I just received a LX winder from an Ebay
aution.  On the back left hand side there is a lever, that for all
intents and purposes, looks like a self-timer lever.  It doesn't
seem to readily move or engage to either side.  Could any of you
learned Pentaxians enlighten me as to what function this lever serves and
how it engages.
 
Thanks,
 
Don


Unsharp Mask

2001-06-26 Thread Paul Jones

Hi,

I have scanning some slides at work and then sharpening them to correct. I
know most people use unsharp mask as opposed to sharpen. Why is that? and
what setting do you use most of the time?

Thanks,
Paul Jones
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Re: Winder LX Question

2001-06-26 Thread Stan Halpin

Try moving the lever to the right with the winder off the camera. You will
see that the shaft on the top left rises up in the air. Voila - a Rewind
lever.

Stan

> From: "Doanald Ross" <[EMAIL PROTECTED]>
> Reply-To: [EMAIL PROTECTED]
> Date: Tue, 26 Jun 2001 22:34:45 -0400
> To: <[EMAIL PROTECTED]>
> Subject: Winder LX Question
> 
> Greetings all
> 
> I just received a LX winder from an Ebay aution.  On the back left hand side
> there is a lever, that for all intents and purposes, looks like a self-timer
> lever.  It doesn't seem to readily move or engage to either side.  Could any
> of you learned Pentaxians enlighten me as to what function this lever serves
> and how it engages.
> 
> Thanks,
> 
> Don
> 

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Re: OT: NY city information

2001-06-26 Thread Ann Sanfedele

Bob - if I had a choice between NY and where you are headed, believe me I'd take
Canyonlands and
M valley.  Have a Navajo Taco for me, will yah?

ann

Bob Rapp wrote:

> Ann wrote, Rob wrote, Tom wrote..now I write. I was planning a trip to
> the states but NY leg will be cancelled. I will take a camera or two plus a
> swag of lenses. Instead of NY I will stop by Monument Valley and the
> Canyolands in Utah.
>
> Sorry Ann!
>
> Bob Rapp
>
> - Original Message -
> From: "Ann Sanfedele" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Tuesday, June 26, 2001 2:27 PM
> Subject: Re: OT: NY city information
>
> >
> > tom wrote:
> >
> > > Ann Sanfedele wrote:
> > > >> so don't call unless you are Rob ;)
> > > > annsan
> > >
> > > Man...Rob gets to go to NY and the UK, *and* he gets your number. Must
> > > be the accent.
> > > tv
> >
> > LOL !   -  but I have to think about it - you know he said he wasn't going
> > to bring a Pentax.  geesh.
> > ann
> >
> > -
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> >
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Re: Winder LX Question

2001-06-26 Thread Doug Brewer

It's the power rewind lever.  After engaging the release on the bottom right of the 
winder,  cock the rewind lever and the winder will rewind your film.

Hope this helps,

Doug




At 10:34 PM -04006/26/01, Doanald Ross  donned the ruby slippers, tapped the heels 
together three times, and chanted:
Greetings all
 
I just received a LX winder from an Ebay aution.  On the back left hand side there is 
a lever, that for all intents and purposes, looks like a self-timer lever.  It doesn't 
seem to readily move or engage to either side.  Could any of you learned Pentaxians 
enlighten me as to what function this lever serves and how it engages.
 
Thanks,
 
Don

-- 
Douglas Forrest Brewer
Ashwood Lake Photography
[EMAIL PROTECTED]
http://www.alphoto.com
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Re: MX Question.

2001-06-26 Thread Bob Rapp

MX vs K1000

  I was able to swap straight across a plastic bodied K1000 in new condition
with a f2.0 lens for a equally fine MX with a A 50f1.4. You figure it out as
we were both over the moon!

Bob
- Original Message -
From: "Peter Alling" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, June 27, 2001 1:11 PM
Subject: Re: MX Question.


> Which is a mystery.
>
> At 12:23 PM 6/25/2001 -0500, you wrote:
> >The MX is/has ...
> >#1  Smaller & lighter
> >#2  see the aperture through the finder via a nide little window to the
> >outside.
> >#3  Interchangable viewing screens
> >#4  DOF Preview
> >#5  Self-timer
> >#6  Shutter release lock/power switch
> >#7  LEDs for meter display vs. centering needle
> >#8  Takes 2 batteries vs. 1 in the K-1000.
> >
> >It's interesting to note that used K-1000 bodies sell
> >for about the same price as a nice MX body.
> >
> >Collin
> >
> >At 08:53 AM 6/25/01 -0600, you wrote:
> >>New to the pentax world so forgive me if this is an obvious answer but
> >>What are the main differences between the MX and my K-1000.  From  a
> >>user-interface perspective, they look almost identical -except for what
I
> >>assume to be a self timer on the front...
> >>
> >>
> >>Mike Y.
> >
> >
> >* * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
> >  <><  <><  <><  <><  <><  <><  <><  <><  <><  <><  <><  <><
> >
> >-
> >This message is from the Pentax-Discuss Mail List.  To unsubscribe,
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Re: MX Question.

2001-06-26 Thread Peter Alling

Which is a mystery.

At 12:23 PM 6/25/2001 -0500, you wrote:
>The MX is/has ...
>#1  Smaller & lighter
>#2  see the aperture through the finder via a nide little window to the 
>outside.
>#3  Interchangable viewing screens
>#4  DOF Preview
>#5  Self-timer
>#6  Shutter release lock/power switch
>#7  LEDs for meter display vs. centering needle
>#8  Takes 2 batteries vs. 1 in the K-1000.
>
>It's interesting to note that used K-1000 bodies sell
>for about the same price as a nice MX body.
>
>Collin
>
>At 08:53 AM 6/25/01 -0600, you wrote:
>>New to the pentax world so forgive me if this is an obvious answer but 
>>What are the main differences between the MX and my K-1000.  From  a 
>>user-interface perspective, they look almost identical -except for what I 
>>assume to be a self timer on the front...
>>
>>
>>Mike Y.
>
>
>* * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
>  <><  <><  <><  <><  <><  <><  <><  <><  <><  <><  <><  <><
>
>-
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Re: Keep the K 30mm or not?

2001-06-26 Thread Peter Alling

Yes, I use it, it's a wonderful lens.

At 05:38 PM 6/25/2001 -0700, you wrote:
>On Mon, 25 Jun 2001, Collin Brendemuehl wrote:
>
> > Might be a worthwhile "investment" to hang onto for future use.
>
>Well, it's not in mint condition, since while the glass and mechanics
>are great, the barrel shows quite a bit of brassing. But it was not
>bad for $99. I wouldn't expect to sell it for too much anyway.
>
>Anyone here using this lens on a constant basis?
>
>Chris, did you sell yours?
>
>j
>
>--
>---
>  Juan J. Buhler | Sr. FX Animator @ PDI | Photos at http://www.jbuhler.com
>---
>
>-
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Re: Ebay Warning (Victim of Rip Off)

2001-06-26 Thread John Mustarde

>[EMAIL PROTECTED] wrote:
>
>> Hi, gang.
>> About two months ago I bought a Super Program that I never received.
>> The seller?
>> jdcolour from Medicine Hat, Alberta, Canada.
>> I thought 20 perfect feedback, being a store and being canadian were good
>> warranties. The truth is the camera never arrived. They don't answer my
>> emails now and they were skilled as to make me wait enough as for me being
>> unable to use the ebay policy for rip off (form must be filled between 60
>> days of close of auction). They told me to be patient, that they will ask
>> the canadian post office to investigate about the possible loss of the
>> camera, that I must wait just a bit more. I waited as a saint. It was my
>> main error.
>> Well, you are warned ( and I lost 155 usd)
>>
>> Albano

I bought a lens from jdcolour of Alberta. The delivery
was perfect. I actually spoke with a man on the phone
at some point in the transaction.

I believe they are decent folks. Hopefully they will
make good on this at some point. Perhaps they are not
yet convinced that there is a problem within their
responsibility.

Of course, I could be wrong about jdcolour. I once
thought Pentax in Colorado was okay, based on one
experience. But when my expensive lens was lost in
shipping back from repair, Pentax in Colorado simply
refused to file an insurance claim, leaving me holding
the bag for a thousand bucks.
-- 
Happy Trails,
Texdance
http://members.fortunecity.com/texdance
http://members1.clubphoto.com/john8202
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Winder LX Question

2001-06-26 Thread Doanald Ross



Greetings all
 
I just received a LX winder from an Ebay 
aution.  On the back left hand side there is a lever, that for all intents 
and purposes, looks like a self-timer lever.  It doesn't seem to readily 
move or engage to either side.  Could any of you learned Pentaxians 
enlighten me as to what function this lever serves and how it 
engages.
 
Thanks,
 
Don


Late June PUG Reply

2001-06-26 Thread Doanald Ross

Hi Lasse

Thanks for your comments.  Sorry for the late response.  My PC went south
and I just got it back up.  I even missed the July PUG submission.  Oh well,
next time.
- Original Message -

Subject: PUG: D Ross, S Larson, R Lane

> Donald Ross: Roman Bath
>
> A lady's behind - Yes, We like that too. :)
> Interesting to take a closer look at something that often gets neglected.
And I appreciate that you didn't retouch the flaws. It sort of reminds us of
one aspects of time.
> Now, I don't know what's outside the frame, but I think I would have
framed/cropped it a little differently. Just like when shooting real people
I would have tried to either get their feet fully shown or cropped a little
tighter, up around the figures' thighs. Also I think I would either have
tried to get the person to the left either fully shown, or cropped out
further.

I agree with your comments.  This was my first submission and I had to learn
the nuances of PS image sizing and cropping.

> (Had I been paid to do the work, I might have even ahve tried to return to
the scene, when the sun would cast more dramatic shadows on the
plaque...:) )

This plaque will be(has been) the subject of many photos this spring.  We
have great morning and evening light in our garden.  Southwest exposure with
towering locust and linden trees for dappled shade.  The definitive shot
will be taken with my new(for me) LX, albeit too late for the LX gallery.

> Maybe I also would have tried some manipulation (level adjustments?) to
enhance the feeling of the structure. (I often find that pictures look
slightly too bright on my monitor, it may be that I haven't calibrated my
monitor correctly.)

Again, I need to learn PS more.

> However these comments of mine dont take away the fact that it's still a
nice picture to look at.

Thank you.  I feel that way too.  A lot of my pictures fall into that
category, ie: no great photographic technique or skill displayed(not
breathtaking), but pleasant to look at.

> Was it simply because you couldn't get closer that you dared to handhold
that long a focal range?
>
I could't get closer with a tripod because the Hot Tub and its' steps are in
front of it.  The exposure exceeded the 1/focal length rule of thumb so I
was confident I could controll the movement.  This shot was taken with my
first roll using the A*200 macro.  As I said before, there will be many more
with different lens and perspective.

Again, thanks for the encouraging comments.

Don

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RE: Overlapping frames on MZ-S

2001-06-26 Thread Jaros³aw Brzeziñski

It is true that early production samples of most high-end and professional cameras 
usually suffer from some kind of shortcomings. It was true of Nikon F4s or Canon EOS 
3s - to name a couple. Users' complaints usually make the companies address the 
problems - so let's hope Pentax will do the same

"Paris, Leonard" <[EMAIL PROTECTED]> napisa³ / wrote: 

> I'd guess that just how much tension it takes to activate the automatic film
> rewind sequence in a camera body is a design parameter for the camera but,
> the length of the film in the cartridge is a function of the quality control
> folks at the film manufacturers, as is the drag present in a normally
> advancing film. I'm sure there are more variables that I'm not considering.
> 
> I also learned, from experience, that the earliest models of many equipment
> items (not just cameras) can need minor adjustments.  Something about market
> (and marketing) pressure forcing release before testing is completed, which
> makes all of the early buyers become beta testers.  Not that the members of
> the PDML were actually pressing Pentax to release a new camera, oh no, that
> would never happen. ;-)
> 
> That's kind of why I like to wait a while and see what people say about
> them.  Perhaps one of our list keepers should make a list of all the
> troubles reported and publish the list periodically.  The most important
> thing to do is to return the camera for in-warranty repairs promptly.  This
> will provide feedback to the factory that something needs attention.
> 
> Len
> ---
>   
> 
> > -Original Message-
> > From: Francis Tang [mailto:[EMAIL PROTECTED]]
> > Sent: Monday, June 25, 2001 4:49 PM
> > To: [EMAIL PROTECTED]
> > Subject: Re: Overlapping frames on MZ-S
> > 
> > 
> > Surely on a camera like the MZ-S, you'd expect it to be able 
> > to automatically rewind the film when it reaches the end, 
> > right?  If you're expected to prod the rewind button when you 
> > reach the end, then doesn't that defeat the purpose of the 
> > auto-rewind feature?
> > 
> > -- 
> > Francis Tang, Postgraduate Research Student, LFCS, Edinburgh.
> > Visiting: AG14, FB Mathematik, TU Darmstadt, Deutschland.
> > Tel: +49 174/3545241 (D2 Voda)  ZNr: S215/215
> > Email: [EMAIL PROTECTED] WWW: 
> > http://www.dcs.ed.ac.uk/home/fhlt/
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Re: FTZ 500 flash question...

2001-06-26 Thread tom

Quoc Bao Raphael Tran wrote:
> 
> hi all.
> 
> i'm using a pocket bounce flash by lumiquest on my FTZ 500.  the recycle
> times are quite horrible in my opinion.  could anybody point me to good AND
> not-so-expensive battery pack options?  

I use a Quantum Turbo Z...it usually recycles within 2 seconds and is
rechargeable.

The Pentax TR Power Pack II uses C batteries, and from what I understand
recycles in about 4 or 5 seconds. Maybe someone can confirm this.

The Quantum costs about $300. The Pentax runs about $120.

tv
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Re: LX Winder Problems

2001-06-26 Thread William Robb

Hi Bill, I'll check with my repair guy tomorrow. Probably it is
the switch cover that has stripped, and not the switch itself.
William Robb
> - Original Message -
> From: "Bill Kane" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Wednesday, June 27, 2001 9:59 AM
> Subject: LX Winder Problems
>
>
> > Ok Gang,
> >
> >I took my LX with winder, 300 f/4 (non Pentax) and SMC
35-105 f/3.5
> > (wonderful Pentax lens) out to Brookfield Zoo last weekend.
Winder worked
> > wonderfully at the dolphin show and everything . . .
although I wish I had
> > brought the FB-1 and sportsfinder with instead of the
standard prism . . .
> >
> >  . . . anyhow, time for the problem . . . I took the camera
out of the bag
> > yesterday and now the winder isn't working.  The switch that
controls Off,
> > C, S just spins around loose.  Does anyone have any idea of
how easy/hard
> > this might be to repair?  I'm really bummed, and am hoping
it's something
> > relatively simple . . . . anyone have the repair notes in
PDF?
> >
> > Thanks,
> > Illinois Bill


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Re: SMC A 35-105 vs. SMC FA 24-90

2001-06-26 Thread Jaros³aw Brzeziñski

In the good, old days most zoom lenses were catering for both pros' and tyros' needs; 
the latter wanted to use the same lenses as pros did. Nowadays there is a clear 
startification of zoom lenses: those designed for pros are faster but with limited 
focal length range. However, please acknowledge the fact that in the times of the SMC 
A 
35-105 there was no 28-70mm lens with constant aperture of f/2,8 like it is today. The 
SMC A 24-90mm zoom lens is an ambitious design for advanced amateurs and to keep the 
lens' quality high it has to be slower and with variable aperture. It is easier to 
make 
a good 35-105 lens than one which goes down to 24mm. To give you an axample: both 
Nikon 
and Minoolta made excellent zoom lenes in 35-200 range but design that went down to 28 
(28-200) were inferior. Therefore, you are invited to enjoy the high quality 24-90mm 
Pentax lens with relatively slow apertures - they cannot do it otherwise

Greetings

Jarek

Alan Chan <[EMAIL PROTECTED]> napisa³ / wrote: 

> >Why do newer lenses offer inferior aperture values? I thought that new
> >materials and forumlas could permit for brighter lenses?
> 
> To cut cost, and to keep the size and weight down.
> 
> regards,
> Alan Chan
> 
> _
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> 
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Re: MZ-S and limited lenses

2001-06-26 Thread tom

Alan Chan wrote:
> 
> I have this lens and the 77/1.8 as well. From what I can see, there is
> nothing special about the 43/1.9 optically. 

Stop it down a bit, stick it on a tripod and shoot slow slide film. It's
fantastic. Wish I had it with me today, in fact

Even though it's not razor sharp wide open, the color rendition and
contrast still make it stand out in my book.

tv
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Re: Naive question, viewfinder magnification

2001-06-26 Thread Jaros³aw Brzeziñski

Unfortunately this is a case of a vicious circle: a viewfinder with bigger 
magnification gives you - yes, you've guessed it - bigger image in the finder, but 
that's why it is hard to see the whole image, including exposure data outside the 
image 
area, at a glance, especially for those wearing eyeglasses. Smaller viewfinder 
magnification gives you the so-called "high viewpoint finder", which makes it easier 
to 
see the whole image and exposure information even with your eye detached form the 
eyepiece bit the image is smaller and thus manual focusing is more difficult. Numerous 
AF cameras have a smaller magnification relying on the fact that AF will do the job 
for 
you and your task is only to compose and see everything at a glance. Having high image 
magnification and full picture of the image plus exposure data is a contradiction in 
itself. Your MX finder makes manual focusing a snap; with MZ-5N the priority is on 
ability to see everything in the finder at a glance even when you are wearing 
eyeglasses.

Francis Tang <[EMAIL PROTECTED]> napisa³ / wrote: 

> I was just wondering, what's the significance of viewfinder magnification?  I know 
that since I am used to my MX and ME Supers, I found it quite hard to manually focus 
on 
my friend's MZ-5n.  So my initial thought was that the bigger the better.  But then I 
noticed that the LX officially has a smaller magnification than the MX.  In fact, all 
Pentax cameras have smaller magnification than the MX.  So what's up?
> 
> Incidentally, according to the brochures on the Pentax USA website, the MZ-S has a 
viewfinder magnification of 0.75x, where as that of the MZ-5n is 0.8x.
> 
> I've heard people complain that they can't see all of the viewfinder in the MX, and 
>I 
know I have to press the camera hard into my face so that I can see all of it.  But 
why 
can't Pentax keep the same viewfinder magnification on the MX and just make the rear 
window bigger?  Am I just being too naive here?
> 
> -- 
> Francis Tang, Postgraduate Research Student, LFCS, Edinburgh.
> Visiting: AG14, FB Mathematik, TU Darmstadt, Deutschland.
> Tel: +49 174/3545241 (D2 Voda)  ZNr: S215/215
> Email: [EMAIL PROTECTED] WWW: http://www.dcs.ed.ac.uk/home/fhlt/
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Re: LX Winder Problems

2001-06-26 Thread Bob Rapp

"Boz's" (www.bdimitrov.de/kmp/) site has information on the winder under
"extras". I don't think
Pentax USA still supports repairs for that winder.

Bob Rapp

- Original Message -
From: "Bill Kane" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, June 27, 2001 9:59 AM
Subject: LX Winder Problems


> Ok Gang,
>
>I took my LX with winder, 300 f/4 (non Pentax) and SMC 35-105 f/3.5
> (wonderful Pentax lens) out to Brookfield Zoo last weekend.  Winder worked
> wonderfully at the dolphin show and everything . . . although I wish I had
> brought the FB-1 and sportsfinder with instead of the standard prism . . .
>
>  . . . anyhow, time for the problem . . . I took the camera out of the bag
> yesterday and now the winder isn't working.  The switch that controls Off,
> C, S just spins around loose.  Does anyone have any idea of how easy/hard
> this might be to repair?  I'm really bummed, and am hoping it's something
> relatively simple . . . . anyone have the repair notes in PDF?
>
> Thanks,
> Illinois Bill
>
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> This message is from the Pentax-Discuss Mail List.  To unsubscribe,
> go to http://www.pdml.net and follow the directions. Don't forget to
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Re: Ebay Warning (Victim of Rip Off)

2001-06-26 Thread David S.



[EMAIL PROTECTED] wrote:

> Hi, gang.
> About two months ago I bought a Super Program that I never received.
> The seller?
> jdcolour from Medicine Hat, Alberta, Canada.
> I thought 20 perfect feedback, being a store and being canadian were good
> warranties. The truth is the camera never arrived. They don't answer my
> emails now and they were skilled as to make me wait enough as for me being
> unable to use the ebay policy for rip off (form must be filled between 60
> days of close of auction). They told me to be patient, that they will ask
> the canadian post office to investigate about the possible loss of the
> camera, that I must wait just a bit more. I waited as a saint. It was my
> main error.
> Well, you are warned ( and I lost 155 usd)
>
> Albano
>

Sorry to hear about what sounds as a bad deal.  I have listed that name to
avoid.  Hope the "find" the camera for you.  Keep us posted

David S.

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Re: SMC A 35-105 vs. SMC FA 24-90

2001-06-26 Thread Ken Archer

Now you know one of the reasons why I have a M42 and a K mount Vivitar
Series 1 70-210 3.5 zooms.

Anand DHUPKAR wrote:
> 
> I beg to differ.  I bought my first zoom vivitar one  around 20 years back.
> It was a fixed aperture one.  Now here in US I bought my new camera systems
> and all I am getting are variable aperature ones.  In fact, I was initially
> surprised to note that aperature varies depending on focal length while
> zooming and had to do a little work to understand why it was.
> 
> I really miss that constant one.
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Re: MZ-S and limited lenses

2001-06-26 Thread Alan Chan

I have this lens and the 77/1.8 as well. From what I can see, there is 
nothing special about the 43/1.9 optically. The 77/1.8 is excellent though. 
Both have metal bodies.

regards,
Alan Chan

>I have been interested to know more about this lens. I am not familiar
>with Pentax system and perhaps the only member of this without a piece
>of Pentax equipment. I wonder if someone can give me some information
>about this lens as to what reason it is so much more expensive than FA
>50 mm 1/4.
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LX Winder Problems

2001-06-26 Thread Bill Kane

Ok Gang,

   I took my LX with winder, 300 f/4 (non Pentax) and SMC 35-105 f/3.5
(wonderful Pentax lens) out to Brookfield Zoo last weekend.  Winder worked
wonderfully at the dolphin show and everything . . . although I wish I had
brought the FB-1 and sportsfinder with instead of the standard prism . . .

 . . . anyhow, time for the problem . . . I took the camera out of the bag
yesterday and now the winder isn't working.  The switch that controls Off,
C, S just spins around loose.  Does anyone have any idea of how easy/hard
this might be to repair?  I'm really bummed, and am hoping it's something
relatively simple . . . . anyone have the repair notes in PDF?

Thanks,
Illinois Bill

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Re: IFPO....what's the deal?

2001-06-26 Thread Pntx645

  Many years ago (maybe 20?) I attended a professional golf tourney in a  
nearby city.  Being fairly naive I toted my camera gear and proceeded to 
start taking pictures.  WRONG!  After an extended chat with the tournament 
officials, I left and put the gear back in the car.
  A few days later, I saw an ad for IFPO and sent them whatever the 
membership was at the time -- under $20 if I remember correctly.  I got a 
membership card and that's about it.  By the way my membership number was 
somewhat less than 100, so I was among the very first to be bilked.
  I have picked up their magazine from time to time and from what I can 
gather every member is a freelance photographer "on assignment" from the 
magazine and they will write the appropriate letters for you to what ever 
event you are wanting to cover.  And I also gather that most of the events at 
which they are able to place people are relatively minor  -- haven't seen any 
Super Bowl or World Cup coverage in the magazine to date.  BUT, if they can 
get you in some place you otherwise couldn't, then maybe they are worth the 
cost.  I believe a lifetime membership is just under $100.
  By the way, I did have a real press pass from a local publication for a 
while and THOSE are really handy 

Robert
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Re: IFPO....what's the deal?

2001-06-26 Thread Pntx645

  Many years ago (maybe 20?) I attended a professional golf tourney in a  
nearby city.  Being fairly naive I toted my camera gear and proceeded to 
start taking pictures.  WRONG!  After an extended chat with the tournament 
officials, I left and put the gear back in the car.
  A few days later, I saw an ad for IFPO and sent them whatever the 
membership was at the time -- under $20 if I remember correctly.  I got a 
membership card and that's about it.  By the way my membership number was 
somewhat less than 100, so I was among the very first to be bilked.
  I have picked up their magazine from time to time and from what I can 
gather every member is a freelance photographer "on assignment" from the 
magazine and they will write the appropriate letters for you to what ever 
event you are wanting to cover.  And I also gather that most of the events at 
which they are able to place people are relatively minor  -- haven't seen any 
Super Bowl or World Cup coverage in the magazine to date.  BUT, if they can 
get you in some place you otherwise couldn't, then maybe they are worth the 
cost.  I believe a lifetime membership is just under $100.
  By the way, I did have a real press pass from a local publication for a 
while and THOSE are really handy 

Robert
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RE: FTZ 500 flash question...

2001-06-26 Thread McRae, Max MS

Quoc Bao Raphael Tran wrote:
i'm using a pocket bounce flash by lumiquest on my FTZ 500.  the recycle
times are quite horrible in my opinion.  could anybody point me to good AND
not-so-expensive battery pack options?  and what connectors connect to it?
answer me off list (or on-list if u feel ppl are going to appreciate it!)

Hi Raph,

I use a Quantum Turbo Z with my FTZ and find it excellent.
Recycle times, even at full power, are less than 2 seconds.
The unit is quite small and light and fits easily in the breast pocket
of my photographer's jacket.
It has a set of 4 little lights that all light up when it's fully charged 
and then go out one by one as the charge is used up.
The recharger takes about a hour to fully restore the pack from 
an exhausted state.
The cable for the flash is a curly cord type and the connector
to the flash is very snug fitting, and well designed.

The Quantum wasn't cheap, I think I paid nearly NZ$800.00
for mine, but I have never regretted it.
I do a lot of flash work and the Quantum has more than enough power
for me to do a wedding of 20+ rolls of 36exp. and still have power left over.

I agonised over paying out all that money, but now that I have it, I look
forward to doing jobs like weddings, knowing that not only do I look like a 
professional, I can do a professional job as well.

Regards,

Max

Auckland, NZ






  

EOM 

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RE: Overlapping frames on MZ-S

2001-06-26 Thread Patrick White


"John Francis" wrote:
> I've just got my first few rolls of film back from the MZ-S,
> and on one roll frames 23 & 24 overlap by two sprocket holes
> (a 36-exposure roll, before you ask the obvious question).

I'm curious, how fresh were the batteries?  I had problems with overlapping
frames on my PZ the one time I tried to see what it would do when the
battery ran down.  In my case, it reached the end of the film near the end
of the wind-on cycle but didn't realize it was there and allowed me to take
another (overlapping) shot.  It did realize that it needed to rewind after
the shot (and just barely had enough power to accomplish the task).

Incidently, I thought the thing counted sprocket holes or something.  If
so, it shouldn't be possible for it to misadvance the film without noticing,
no matter what the state of the batteries.  Have you checked the sprocket
hole emitter/detector -- maybe there's a fleck of dirt confusing it?

later,
patbob ([EMAIL PROTECTED] [EMAIL PROTECTED])

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RE: MZ-S long shutter speeds and aperture display

2001-06-26 Thread Matamoros, Cesar A.

Eric,

The manual selection (progression) of the shutter speeds from 1
second are 1, 1.5, 2, 3, 4, 6, 8, 10, 15, 20, and 30 seconds.

With both F and FA lenses the selected aperture apears in the
viewfinder and is imprinted.  And your understanding of selecting aperture
priority mode is correct.

César Matamoros II
Panama City, Florida
  

> -Original Message-
> From: Eric Lawton [SMTP:[EMAIL PROTECTED]]
> Sent: Tuesday, June 26, 2001 1:08 PM
> To:   [EMAIL PROTECTED]
> Subject:  MZ-S long shutter speeds and aperture display
> 
> I'm starting to look seriously at the MZ-s and I have a couple questions.
> 
> Shutter speeds on the MZ-S are listed as 30 sec to 1/6000 sec and bulb. On
> 
> an MZ-s can one select a long (say between 1 sec and 30 sec) shutter speed
> 
> manually with the shutter speed dial?  If this is true I might be able to 
> reduce my need to carry a cable release to only those situations where the
> 
> timing of shutter release is critical (by using the 2sec timer and mirror 
> prefire).  I can get timed exposures on my ZX-M up to 30 sec but only in 
> aperture priority mode - sometimes that is not convenient.
> 
> Also,
> With a F or FA lens mounted to the MZ-s in aperture priority or manual
> mode 
> is the selected aperture shown in the viewfinder and on the data
> imprinting? 
>   I hope so, as I am mostly shoot in these modes.   I believe I understand
> 
> it correctly that aperture priority mode is only available by manually 
> selecting an aperture with the aperture ring.
> 
> Thanks for the help,
> The people on this list are just great.
> 
> Eric Lawton
> 
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Re: MX Question.

2001-06-26 Thread aimcompute

I just received the K1000 w/A 80-200 lens for total of $147 including
shipping that I purchased from ebay.  I would be surprised if more than 1
roll of film was run through the camera.  The only marks on the camera are
finger print smudges on the metal, which can be wiped off.  There is not a
single scratch on the baseplate.   Everything looks as new.

My son now has a brand new camera to learn with.  I'll take the zoom and
give him a 50/1.4.

I had been bidding on a brand new MIB K1000 outfit which came with a 50mm
lens and case.  It eventually sold for $260.00.

At that price it was probably an equally good deal.  I happen to have a
spare eveready case & 50mm lens, though so I feel happy I did not win the
higher bid.

Tom C.



- Original Message -
From: "Tom Rittenhouse" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, June 26, 2001 12:11 AM
Subject: Re: MX Question.


> That is because for more than 20 years the K-1000 was the
> camera recommended for photography courses, so it must be
> good. Actually it was the cheapest manual slr available.
> --Tom
>
>
> Collin Brendemuehl wrote:
> >
> >
> > It's interesting to note that used K-1000 bodies sell
> > for about the same price as a nice MX body.
>
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MZ-S long shutter speeds and aperture display

2001-06-26 Thread Eric Lawton

I'm starting to look seriously at the MZ-s and I have a couple questions.

Shutter speeds on the MZ-S are listed as 30 sec to 1/6000 sec and bulb. On 
an MZ-s can one select a long (say between 1 sec and 30 sec) shutter speed 
manually with the shutter speed dial?  If this is true I might be able to 
reduce my need to carry a cable release to only those situations where the 
timing of shutter release is critical (by using the 2sec timer and mirror 
prefire).  I can get timed exposures on my ZX-M up to 30 sec but only in 
aperture priority mode - sometimes that is not convenient.

Also,
With a F or FA lens mounted to the MZ-s in aperture priority or manual mode 
is the selected aperture shown in the viewfinder and on the data imprinting? 
  I hope so, as I am mostly shoot in these modes.   I believe I understand 
it correctly that aperture priority mode is only available by manually 
selecting an aperture with the aperture ring.

Thanks for the help,
The people on this list are just great.

Eric Lawton

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Re: SMC A 35-105 vs. SMC FA 24-90

2001-06-26 Thread Anand DHUPKAR

I beg to differ.  I bought my first zoom vivitar one  around 20 years back.  
It was a fixed aperture one.  Now here in US I bought my new camera systems 
and all I am getting are variable aperature ones.  In fact, I was initially 
surprised to note that aperature varies depending on focal length while 
zooming and had to do a little work to understand why it was.

I really miss that constant one.


>From: Todd Stanley <[EMAIL PROTECTED]>
>Reply-To: [EMAIL PROTECTED]
>To: [EMAIL PROTECTED]
>Subject: Re: SMC A 35-105 vs. SMC FA 24-90
>Date: Tue, 26 Jun 2001 10:54:10 -0500
>
>At 05:43 PM 6/25/01 +0200, you wrote:
> >
> >And a different, general question:
> >
> >Why do newer lenses offer inferior aperture values? I thought that new
> >materials and forumlas could permit for brighter lenses?
>
>They do.  Zoom lenses have been around for a while, but the constant
>aperture F2.8 such as 80-200mm F2.8 are more recent.  But these lenses are
>terribly expensive.  The typical SLR buyer would rather pay $150 for a
>slower, variable aperture zoom than $1000 for the fast, F2.8 aperture zoom.
>  Also, with newer SLRs, constant aperture zooms are less important.  For
>something like manual flash, thyristor flash, or using an external light
>meter, knowing the exact aperture value is important (something not
>possible at all focal lengths on a variable aperture zoom).  With better
>built in light meters and TTL flash, a constant aperture zoom is not as
>important to most people.
>
> >
> >In fact I was told that the maximum aperture does not depend on the
> >quality or groups of the lenses, but only on geometry (front lense,
> >length)?
>
>True.
>
> >
> >I do not get this point, since the 35/105 is labeled 'f/3.5' for the full
> >range.
>
>There are a few tricks involved in doing this, that's why these lenses are
>more expensive than variable aperture lenses.  One of the tricks is using
>the aperture blades.  At the shorter ends the 35-105mm F3.5 lens is
>actually stopped down just a little bit - otherwise it would be something
>like a 35-105mm F3.0-F3.5 lens.
>
>Todd
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RE: Ebay Warning (Victim of Rip Off)

2001-06-26 Thread Peifer, William [OCDUS]

Albano wrote:
> Hi, gang.
> About two months ago I bought a Super Program that I never received.
> The seller?
> jdcolour from Medicine Hat, Alberta, Canada.
> I thought 20 perfect feedback, being a store and being canadian were
> good warranties. The truth is the camera never arrived. They don't answer
> my emails now and they were skilled as to make me wait enough as for
> me being unable to use the ebay policy for rip off (form must be filled
> between 60 days of close of auction). They told me to be patient, that
> they will ask the canadian post office to investigate about the possible
> loss of the camera, that I must wait just a bit more. I waited as a saint.
> It was my main error.


Hi Albano,

Sorry to hear about your bad experience with this seller.  For what it's
worth -- and I hope this wasn't too presumptuous of me -- I sent the
following note to this seller inquiring about the status of your order:

==
Dear "jdcolour",

I'm inquiring on a recent auction transaction between yourself and a fellow
Pentax Discuss Mail List member.  The item in question is a Pentax Super
Program body (item #1229288250) that you listed in an eBay auction about two
months ago.  He reports to our list that he has not yet received the
merchandise and that you are no longer responding to his e-mails.  The
gentleman in question is a highly respected member of our mailing list.
This report, if true, would certainly make Pentax enthusiasts on our list
hesitant to transact business with your company.  It is my sincere hope that
there has been a simple misunderstanding in this case.  I'm certain you
realize that protection of your integrity as a businessman and eBay merchant
is not only in your best interersts, but also in the interests of those of
us who are your potential customers.  Have you been able to find out
anything from the Canadian postal authorities on the status of this
shipment?  Will your insurance cover items lost in shipping?  (I would think
this would be part of your standard practices.)  Is his repeat business, or
the potential business of his fellow Pentax list members, worth enough to
you to consider compensating him -- at least partially -- for his loss?  I
am hoping that you will consider contacting this gentleman and pursuing a
mutually agreeable settlement to this dispute.  Thanks in advance for your
consideration.

Kind regards,
William R. Peifer
USA
[EMAIL PROTECTED]
==

Perhaps he'll ignore me as well, but I thought it would be worth a shot.
You should probably contact eBay anyway -- this is a not-insignificant
amount of money, and I think they'd be willing to bend the rules.  Did
either you or the seller insure the package?  With USPS insurance, you must
wait a LONG time -- at least a couple of months, I think -- before you can
even file a claim.  Did you pay by credit card?  You may be insured through
your credit card company.  Money order?  You may be protected by Canadian
wire fraud laws.  Finally, is it possible that your shipment is being held
up in Customs at the destination point?

Again, my regrets for your loss.  Thanks for sharing this information with
the group.  Hope you're able to get a least a partial reimbursement through
some mechanism.

Bill Peifer
Rochester, NY

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unsubscribe

2001-06-26 Thread Tiger Moses

unsubscribe

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Re: Ebay Warning (Victim of Rip Off)

2001-06-26 Thread Chris Brogden

On Tue, 26 Jun 2001 [EMAIL PROTECTED] wrote:

> About two months ago I bought a Super Program that I never received.
> The seller?
> jdcolour from Medicine Hat, Alberta, Canada.
> I thought 20 perfect feedback, being a store and being canadian were good
> warranties. The truth is the camera never arrived. They don't answer my
> emails now and they were skilled as to make me wait enough as for me being
> unable to use the ebay policy for rip off (form must be filled between 60
> days of close of auction). They told me to be patient, that they will ask
> the canadian post office to investigate about the possible loss of the
> camera, that I must wait just a bit more. I waited as a saint. It was my
> main error.
> Well, you are warned ( and I lost 155 usd)

Ouch... I'm sorry to hear that.  In a case like that it's probably best to
call them and explain the situation to the manager, not the person in
charge of eBay stuff.  From their perspective, they have no idea whether
or not you received the camera, and Canada Post is no help in matters like
this, from what I've heard.  I've asked them about simple things like
Canada-to-US shipping times, and they say that once an item has left
Canada they can tell me nothing about it, since it's out of their hands.

If you paid for insurance, you can probably put a claim in for loss of
merchandise, but that would be your only recourse short of action on the
part of the store.  Keep in mind that the store likely isn't *trying* to
rip you off, so if you call them and explain the situation to the manager
on the phone, it might be resolved.  Please keep me posted!

chris

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Re: SMC A 35-105 vs. SMC FA 24-90

2001-06-26 Thread Todd Stanley

At 05:43 PM 6/25/01 +0200, you wrote:
>
>And a different, general question:
>
>Why do newer lenses offer inferior aperture values? I thought that new
>materials and forumlas could permit for brighter lenses?

They do.  Zoom lenses have been around for a while, but the constant
aperture F2.8 such as 80-200mm F2.8 are more recent.  But these lenses are
terribly expensive.  The typical SLR buyer would rather pay $150 for a
slower, variable aperture zoom than $1000 for the fast, F2.8 aperture zoom.
 Also, with newer SLRs, constant aperture zooms are less important.  For
something like manual flash, thyristor flash, or using an external light
meter, knowing the exact aperture value is important (something not
possible at all focal lengths on a variable aperture zoom).  With better
built in light meters and TTL flash, a constant aperture zoom is not as
important to most people.

>
>In fact I was told that the maximum aperture does not depend on the
>quality or groups of the lenses, but only on geometry (front lense,
>length)?

True.

>
>I do not get this point, since the 35/105 is labeled 'f/3.5' for the full
>range.

There are a few tricks involved in doing this, that's why these lenses are
more expensive than variable aperture lenses.  One of the tricks is using
the aperture blades.  At the shorter ends the 35-105mm F3.5 lens is
actually stopped down just a little bit - otherwise it would be something
like a 35-105mm F3.0-F3.5 lens.

Todd
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Re: Naive question, viewfinder magnification

2001-06-26 Thread Todd Stanley

At 12:31 AM 6/26/01 -0700, you wrote:
>
>AFAIK, MX has the highest magnificantion of all Pentax K mount bodies. I 
>have had MX, LX, Super A/Program, P50, MZ-M and Z-1p over the years. I was 
>amazed by how difficult to focus with the MZ-M due to the low 
>magnificantion, because afterall, it's a manual focus body where good 
>quality viewfinder is essential IMO.

Actually, the ME is the highest, at .98x verses .97x for the MX.  However,
the ME's focus srceen is optimized for 
fast lenses, a F4 zoom on the ME can be a challenge.  But a nice 50mm F1.4
on the ME is a great combo.

I have found that the ZX-M is easiest to focus using the Matte part of the
screen anyway, I only use the center aids generally with longer lenses.
It's also the easiest when it comes to focusing slow lenses too, for fast
lenses I'd rather have a KX or the ME.

>
>>Incidentally, according to the brochures on the Pentax USA website, the 
>>MZ-S has a viewfinder magnification of 0.75x, where as that of the MZ-5n is 
>>0.8x.
>
>That's bad. :(

Yeap :(  Most AF camera users don't give a darn about manual lenses, and
just want a bright image to know what the camera is pointed at,
unfortunently.  (I'm not talking about most AF camera using list members here)

>
>>I've heard people complain that they can't see all of the viewfinder in the 
>>MX, and I know I have to press the camera hard into my face so that I can 
>>see all of it.  But why can't Pentax keep the same viewfinder magnification 
>>on the MX and just make the rear window bigger?  Am I just being too naive 
>>here?
>
>I has been wondering the same too. Nikon made something called action finder 
>for their F bodies so my only conclusion is cost cutting.

There is a simular finder for the LX too.  

Todd
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Re: Tamron 35-80

2001-06-26 Thread Philippe Trottier

Strange Mine is a 1:2 when in macro mode here is the rest of information on
it...


Tamron Zoom Macro1:2.8~3.5 f=35-80mm No:9120587 o=62mm BBAR Multi C.

it has a Manual/auto for the apperture

in macro mode 35mm = 1:10, 80mm = 1:2

closest focus distance is about 1.2m or ~4'

I haven't noticed the yellow bias... (yet)... So far I think it is better
than my 50mm 1:2 SMC
but that's just an impression... more to come when my 7 films come back...

Phil



> Phillipe,
>
> I have this lens, (assuming we are talking the same model).  Mine is an SP
> lens dating back to about 1980.  Mine close focuses to 1:2.5 which is very
> close for a zoom lens.  Mine has excellent build quality and is in
pristine
> shape.  As to optical qualities, it is reasonably sharp throughout its
> focal range, and also is pretty decent up close.  The only thing I don't
> like about it is, it has a rather pronounced colour cast compared to my
> Pentax lenses.  Even in 4 X 6 prints, there is a yellow bias to the
> picture.  I would say for a 1980 vintage zoom lens it would have been an
> excellent lens.  I wish the build quality this lens was seen more often in
> today's lenses.  I bought the lens mainly because of the Adaptall mount as
> I have both a K mount camera and a screw mount camera.  I also have a
> Tokina 35-70  f2.8 ATX lens, which I use more often, as it is slightly
> sharper, and has nicer colour.
>
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RE: Overlapping frames on MZ-S

2001-06-26 Thread Paris, Leonard

I'd guess that just how much tension it takes to activate the automatic film
rewind sequence in a camera body is a design parameter for the camera but,
the length of the film in the cartridge is a function of the quality control
folks at the film manufacturers, as is the drag present in a normally
advancing film. I'm sure there are more variables that I'm not considering.

I also learned, from experience, that the earliest models of many equipment
items (not just cameras) can need minor adjustments.  Something about market
(and marketing) pressure forcing release before testing is completed, which
makes all of the early buyers become beta testers.  Not that the members of
the PDML were actually pressing Pentax to release a new camera, oh no, that
would never happen. ;-)

That's kind of why I like to wait a while and see what people say about
them.  Perhaps one of our list keepers should make a list of all the
troubles reported and publish the list periodically.  The most important
thing to do is to return the camera for in-warranty repairs promptly.  This
will provide feedback to the factory that something needs attention.

Len
---
  

> -Original Message-
> From: Francis Tang [mailto:[EMAIL PROTECTED]]
> Sent: Monday, June 25, 2001 4:49 PM
> To: [EMAIL PROTECTED]
> Subject: Re: Overlapping frames on MZ-S
> 
> 
> Surely on a camera like the MZ-S, you'd expect it to be able 
> to automatically rewind the film when it reaches the end, 
> right?  If you're expected to prod the rewind button when you 
> reach the end, then doesn't that defeat the purpose of the 
> auto-rewind feature?
> 
> -- 
> Francis Tang, Postgraduate Research Student, LFCS, Edinburgh.
> Visiting: AG14, FB Mathematik, TU Darmstadt, Deutschland.
> Tel: +49 174/3545241 (D2 Voda)  ZNr: S215/215
> Email: [EMAIL PROTECTED] WWW: 
> http://www.dcs.ed.ac.uk/home/fhlt/
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Re: Naive question, viewfinder magnification

2001-06-26 Thread Francis Tang

On Tue, Jun 26, 2001 at 12:31:50AM -0700, Alan Chan wrote:
> >I've heard people complain that they can't see all of the viewfinder in the 
> >MX, and I know I have to press the camera hard into my face so that I can 
> >see all of it.  But why can't Pentax keep the same viewfinder magnification 
> >on the MX and just make the rear window bigger?  Am I just being too naive 
> >here?
> 
> I has been wondering the same too. Nikon made something called action finder 
> for their F bodies so my only conclusion is cost cutting.

H.  "Action finder" reminds me of that door you open on the top
cover of a Yashicamat to give you a direct viewfinder.  At least it's
distortion-free and, with relevance to this topic, has 1.0x
magnification.  Pity you get parallax error...

Incidentally, the Leica 0-Series has such a viewfinder too.

Frank.

-- 
Francis Tang, Postgraduate Research Student, LFCS, Edinburgh.
Visiting: AG14, FB Mathematik, TU Darmstadt, Deutschland.
Tel: +49 174/3545241 (D2 Voda)  ZNr: S215/215
Email: [EMAIL PROTECTED] WWW: http://www.dcs.ed.ac.uk/home/fhlt/
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RE: Pentax SMC-FA 80-320mm f/4.5-5.6 AF Zoom Lens

2001-06-26 Thread Tony Iallonardo

I was just considering the same purchase, but went instead with the Sigma DL
70-300.  I haven't received the lens yet, but folks advised me that it was
generally sharper, cheaper and included a Macro function. 

The Sigma is known to hunt a bit for focus in low light situations, but my
guess is all lenses will be like that.

Hope that helps a bit.


-Original Message-
From: B. K. Lane Sr. [mailto:[EMAIL PROTECTED]]
Sent: Monday, June 25, 2001 7:08 PM
To: [EMAIL PROTECTED]
Subject: Pentax SMC-FA 80-320mm f/4.5-5.6 AF Zoom Lens



Hi everyone,

Thanks for helping me out with my last question. I am guessing the camera
that 
my sister gave me is a M-42 mount. (its a SP1000)

I have another question for ya'll though.

Does anyone have this lens Pentax SMC-FA 80-320mm f/4.5-5.6 AF Zoom Lens?

If so do you like it? Can you use it inside much? I dont mean a really dark
place but like a civic center or football staduim?
Does it take a long time to focus? 

Thanks again for any tips you can send me.
Rebecca

NetZero Platinum
No Banner Ads and Unlimited Access
Sign Up Today - Only $9.95 per month!
http://www.netzero.net
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Re: Attn Ilinois Contingent: Great Photo Op

2001-06-26 Thread Dan Scott

Hey Ed,

That sounds like a workable setup. I usually use a 400 speed film and don't
get past 1:2--I like having part of the critter's environment in the
shot, and my hands (except in certain positions) are too unsteady for slow
film at high mag.

If it was a 10 minute drive, I'd certainly be there quite often. I'd love a
chance to shoot the developmental cycle, all the way through, for an
individual insect.

Dan Scott
[EMAIL PROTECTED]

PS It's one of my favorite jokes, too. Glad to see there are other list
members with a sense of humor as rarefied and sophisticated as mine. 

Ed wrote:

>It was a spur of the moment trip so I grabbed a couple of rolls that one
>of my sons had laying around from his P&S.  I know the first roll was Fuji
>Fujicolor Superia CN 100.  I'm pretty sure that the second roll was Fuji
>Fujicolor Superia CA 200.  It was around 10:30-11:00 in the morning so I
>used available light.  They have a type of netting around the enclosure
>which diffuses the light very nicely.  As I stated in an earlier post, I
>was using my handheld ZX-5n primarily on Spot AF.  It was the first time
>out for my Vivitar AF Macro 100mm f/3.5.  I did not use the "Life-Size
>Attachment" for 1:1 magnification because I was framing nicely with 1:2.
>
>We also went to see the baby gorilla.  I used my SMCP-FA 80-320mm
>f/4.5-5.6 with Kodak Royal Gold 200 to tightly frame the mother nursing
>the baby!  The was probably the quickest roll I have ever used.
>
>When we got home, I was telling my brother and he asked if we went to see
>the baby polar bear.  Ooops!  Sounds like another excuse to visit the zoo!
>Actually, the butterfly exhibit was so cool I think I want to go again
>anyway.  We live less than 10 minutes from the zoo so it is very easy.
>
>If you decide to load up the truck, let me know  Anybody that knows
>the punchline to one of my all-time favorite jokes can't be that bad!  :>)
>
>Ed


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Re: MZ-S and limited lenses

2001-06-26 Thread Bruce Dayton

Eric,

I have mounted my silver 43 limited on my black MZ-S.  It looks quite
similar to silver lens on black body of any other body.  Since all my FA*
lenses are also mostly silver, it really didn't bother me.  It certainly is
a nice combination that I think you would enjoy.

Bruce Dayton
Sacramento, CA


- Original Message -
From: "Eric Lawton" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, June 26, 2001 5:56 AM
Subject: MZ-S and limited lenses


> I'm considering making the leap to auto-focus.  Maybe I'll go all out and
> get the MZ-s and the 43mm limited.
>
> As far as I can tell the limited lenses are only available in the US with
> the silver finish and the MZ-S is only available in black.  Has anyone
> mounted a sliver limited lens on the MZ-s? Does it look out of place?
> Bottom line is I'm concerned with functionality  but, I'm in no hurry
to
> make a purchase.  So if the black limited lenses will be available in the
US
> reaonably soon, maybe I can wait.  Has anyone heard if and/or when the
black
> limited lenses will be available in the US?
>
> Thanks,
> Eric Lawton


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Re: Best ISO 400 Negatine Film

2001-06-26 Thread Bill Owens

Vista is a replacement for HDC Plus.  I've shot two rolls of Vista 200 so
far with mixed results.  The first roll had a somewhat blue tint, but the
second was very good.  Both were shot in my Spotmatic which has just
undergone a CLA.  I set the ISO at 200 for the first and 160 for the second,
which may account for the better results

Bill, KG4LOV
[EMAIL PROTECTED]


> Albano Garcia writes:
>
> > No, I think he is talking about the Vista, wich is the new name of an
> > improved HDC.
>
>  HDC Plus replaced HDC down here.  Is Vista a replacement for the HDC Plus
> line, or is it a different name for the same thing in a different market?
>
> Cheers,
>
>
> - Dave
>
> David A. Mann, B.E. (Elec)
> http://www.digistar.com/~dmann/
>
> "Why is it that if an adult behaves like a child they lock him up,
>  while children are allowed to run free on the streets?" -- Garfield
> -
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Re: Keep the K 30mm or not?

2001-06-26 Thread Paul Ewins

Hi Juan,
One failed to sell on Ebay a couple of days ago - the high bid was
US$167.50, and KEH have one listed as exc+ for US$399, so its probably worth
more than you think. I believe one sold on Ebay a few months back for around
the $250 mark. On that basis $99 is a bargain. I've got a K30f2.8 and an
A28f2.8 but haven't really done much with either to come to any conclusions
as to which is better. I do recall someone on the list saying that the 30
has "cooler" colour rendition to the 28, but I don't know whether that is
all of the 28s or just some of them.

Paul Ewins
Melbourne, Australia



- Original Message -
From: "Juan J. Buhler" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, June 26, 2001 10:38 AM
Subject: Re: Keep the K 30mm or not?


> On Mon, 25 Jun 2001, Collin Brendemuehl wrote:
>
> > Might be a worthwhile "investment" to hang onto for future use.
>
> Well, it's not in mint condition, since while the glass and mechanics
> are great, the barrel shows quite a bit of brassing. But it was not
> bad for $99. I wouldn't expect to sell it for too much anyway.
>
> Anyone here using this lens on a constant basis?
>
> Chris, did you sell yours?
>
> j
>
> --
> --
-
>  Juan J. Buhler | Sr. FX Animator @ PDI | Photos at http://www.jbuhler.com
> --
-
>
> -
> This message is from the Pentax-Discuss Mail List.  To unsubscribe,
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Re: Keep the K 30mm or not?

2001-06-26 Thread Yoshihiko Takinami

Hello,

At 21:34 -0500 6/25/2001, Todd Stanley wrote:

>I would keep it.  Look at it this way:
>
>1.  You can never have too many Pentax lenses
>2.  It's a cool and unusual focal length
>3.  It's rare
>4.  Optically, it's supposedly better than most of the 28mm lenses
>5.  It's a K series lens, so it's well built and will last a long time
>6a.  You get to taunt all of use who don't have it
>6b.  You can also taunt us about how little you paid for it too
>7.  It's faster than your M28 F3.5 anyway
>8.  It looks great on the MZ-S

I second this opinion.

K30/2.8 seems worth having even if you also have FA31/1.8 Limited.

Just my opinion.
-- 
Yoshihiko Takinami
Osaka, Japan
[EMAIL PROTECTED]
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Tamron 35-80

2001-06-26 Thread Arie Vandenberg

Phillipe,

I have this lens, (assuming we are talking the same model).  Mine is an SP 
lens dating back to about 1980.  Mine close focuses to 1:2.5 which is very 
close for a zoom lens.  Mine has excellent build quality and is in pristine 
shape.  As to optical qualities, it is reasonably sharp throughout its 
focal range, and also is pretty decent up close.  The only thing I don't 
like about it is, it has a rather pronounced colour cast compared to my 
Pentax lenses.  Even in 4 X 6 prints, there is a yellow bias to the 
picture.  I would say for a 1980 vintage zoom lens it would have been an 
excellent lens.  I wish the build quality this lens was seen more often in 
today's lenses.  I bought the lens mainly because of the Adaptall mount as 
I have both a K mount camera and a screw mount camera.  I also have a 
Tokina 35-70  f2.8 ATX lens, which I use more often, as it is slightly 
sharper, and has nicer colour. 

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RE: Overlapping frames on MZ-S

2001-06-26 Thread Matamoros, Cesar A.

On the MZ-S, Pentax Function 13 enables/disables automatic film
rewind at the end of the roll.

Sounds like that MZ-S needs to be checked out.  As I stated earlier,
none of the six rolls throuch my MZ-S show any signs of overlapping frames.

César Matamoros II
Panama City, Florida


> -Original Message-
> From: John Francis [SMTP:[EMAIL PROTECTED]]
> Sent: Monday, June 25, 2001 8:19 PM
> To:   [EMAIL PROTECTED]
> Subject:  RE: Overlapping frames on MZ-S
> 
>  
> 
> > -Original Message-
> > From: William Robb [mailto:[EMAIL PROTECTED]]
> > 
> > From: "Francis Tang"
> > > Surely on a camera like the MZ-S, you'd expect it to be able
> > to automatically rewind the film when it reaches the end, right?
> > If you're expected to prod the rewind button when you reach the
> > end, then doesn't that defeat the purpose of the auto-rewind
> > feature?
> > 
> > Thats not one of the custom functions is it? I would prefer a
> > power rewind camera to not do it untill I tell it to.
> > 
> > William Robb
> 
> It *is* a custom function on the PZ-1p.
> 
> But whether or not the rewind is automatically initiated, any
> automated-film-transport camera will detect end-of-roll, and
> won't burn out the advance motor (or snap the film) trying to
> wind film on when there isn't any more film to be wound.
> 
> -- 
> John Francis  .   .   .   .   .   .   .   .   .   .  (650) 429-4427
> MyWay.com   444 Castro St.  Suite 101,Mt. View,   CA  94041
> 
> Hello.  My name is Darth Vader.  I am your Father.  Prepare to die.
> -
> 
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Ebay Warning (Victim of Rip Off)

2001-06-26 Thread Albano_Garcia


Hi, gang.
About two months ago I bought a Super Program that I never received.
The seller?
jdcolour from Medicine Hat, Alberta, Canada.
I thought 20 perfect feedback, being a store and being canadian were good
warranties. The truth is the camera never arrived. They don't answer my
emails now and they were skilled as to make me wait enough as for me being
unable to use the ebay policy for rip off (form must be filled between 60
days of close of auction). They told me to be patient, that they will ask
the canadian post office to investigate about the possible loss of the
camera, that I must wait just a bit more. I waited as a saint. It was my
main error.
Well, you are warned ( and I lost 155 usd)

Albano



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Re: Re[2]: Best ISO 400 Negatine Film

2001-06-26 Thread Albano_Garcia


David wrote:
DAM>  HDC Plus replaced HDC down here.  Is Vista a replacement for the HDC
Plus
DAM> line, or is it a different name for the same thing in a different
market?
  Agfa Vista replaces the former HDC Plus. The news I hear are not so
  good, as Vista emulsions are designed to be more saturated and
  vivid. With HDC Plus 100 it goes the last mild film of the consumer
  line. After the high-contrast Superia 100 and Gold 100, now Agfa
  bows before the horde of low contrast - low everything compact
  cameras.
  Servus, Alin
Yes, Alin, you are right. It replaces HDC Plus. My error
Sorry

Albano



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MZ-S and limited lenses

2001-06-26 Thread Eric Lawton

I'm considering making the leap to auto-focus.  Maybe I'll go all out and 
get the MZ-s and the 43mm limited.

As far as I can tell the limited lenses are only available in the US with 
the silver finish and the MZ-S is only available in black.  Has anyone 
mounted a sliver limited lens on the MZ-s? Does it look out of place?  
Bottom line is I'm concerned with functionality  but, I'm in no hurry to 
make a purchase.  So if the black limited lenses will be available in the US 
reaonably soon, maybe I can wait.  Has anyone heard if and/or when the black 
limited lenses will be available in the US?

Thanks,
Eric Lawton
_
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Freelancers win in U.S. Supreme Court

2001-06-26 Thread admin

Freelance photographers and writers just won a big one against the media
conglomerates in a battle regarding online reproduction rights. From the
BBC web page:

http://news.bbc.co.uk/hi/english/world/americas/newsid_1407000/1407716.stm

Excerpts:

"The court ruled (seven-to-two) that media companies must obtain 
permission from freelancers before posting their work on the internet..."

"The companies argued that the electronic versions were simply 
revisions of the articles or images in print. But the court 
ruled that inclusion in an electronic database is different from 
other kinds of archival or library storage of material that once 
appeared in print."

"Publishers will have to seek freelancers' permission and pay them 
for posting their work online..."



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Re: Ebay: is this for real?

2001-06-26 Thread Rfsindg

Brent,

The description is for the 49mm plastic hood fitted on the front of the lens. 
 The hood is originally for the M85/2 or M100/2.8.  

As others have said, the lens it is on looks much older and a screwmount too. 
 

Regards,  Bob S.

[EMAIL PROTECTED] writes:

<< http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=1249131626
 
 does the lens this guy is describing really existthe description sounds 
 like he's reading off of the lens hood and not the lens. I can't tell what 
is 
 really there by the picture.  >>
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Re: Macro lens: Some insight needed!

2001-06-26 Thread Jan van Wijk

On Tue, 26 Jun 2001 14:46:05 +0530 (IST), Ayash Kanto Mukherjee wrote:

>> I sometimes find that the 200mm macro is too far away to use the AF-140C flash
>> wich has a rather low guidenumber.
>> 
>> Regards, JvW
>
>Therefore, 200mm Macro lens also have limitations as you pointed it out. I
>was not aware of this aspect of using 200 mm Macro lens.

Do note that this is only true for the low guidenumber flash like the ringlight.
When using other, stronger flashes it is not a problem at all.

Further, because I normally do not use a flash at all, the 200mm is BY FAR my 
most popular and successfull macro lens.

Regards, JvW
-
Jan van Wijk;   www.fsys.demon.nl


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Re: Best ISO 400 Negatine Film

2001-06-26 Thread Ray Allen

Yes, I've just seen the first ads for Agfa Vista in Australian Photography
magazine. So, it should not be too many months before it reaches New
Zealand.

Ray Allen.  Sydney.  Australia.
Check out Spotmatic at Yahoo!Groups at:
http://groups.yahoo.com/group/spotmatic

- Original Message -
From: "Aaron Reynolds" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, June 25, 2001 11:37 PM
Subject: Re: Best ISO 400 Negatine Film


>
>
> petit miam wrote:
> >
> > Thankyou. I love Agfa. It is the only film I use now.
> > I use HDC Plus. Is that the new film you are thinking
> > of? I suppose it is fairly new to New Zealand. The US
> > has probably had 6 different versions since then. I
> > have never really been much into Kodak.
>
> Agfa have just launched a line called Vista (I think) out here to
> replace the HDC line.  I haven't tried any yet.
>
> -Aaron
> -
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Re: SMC A 35-105 vs. SMC FA 24-90

2001-06-26 Thread Alan Chan

>Why do newer lenses offer inferior aperture values? I thought that new
>materials and forumlas could permit for brighter lenses?

To cut cost, and to keep the size and weight down.

regards,
Alan Chan

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Re: Macro lens: Some insight needed!

2001-06-26 Thread Ayash Kanto Mukherjee

On Tue, 26 Jun 2001, Jan van Wijk wrote:
> BTW: One advantage of the 100mm macro lenses is that they are a bit closer, 
> allowing better coverage by a ring-light (flash).
> I sometimes find that the 200mm macro is too far away to use the AF-140C flash
> wich has a rather low guidenumber.
> 
> Regards, JvW

Therefore, 200mm Macro lens also have limitations as you pointed it out. I
was not aware of this aspect of using 200 mm Macro lens.

Thanks.
Regards,
Ayash Kanto.

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RE: Paris in the Spring?

2001-06-26 Thread John Coyle

On Tuesday, June 26, 2001 3:29 AM, Juan J. Buhler [SMTP:[EMAIL PROTECTED]] wrote:
> On Mon, 25 Jun 2001, Gerald F. Cermak wrote:
> 
> > I have been going during the US Memorial Day holiday which typically falls
> > on the last Monday in May.  I might do this trip next year, but it will
> > probably be my last since after that my fiance will have finished up and
> > moved to Seattle.  Maybe next year we could plan something around that time?
> > 
> 
> This was also the second time in a row that I was in Paris in May.
> 
> I wouldn't mind going again next year...
> 
> j
> 
> 
> --
> ---
>  Juan J. Buhler | Sr. FX Animator @ PDI | Photos at http://www.jbuhler.com
> ---
> 

Nor would I, but it's a hell of a long way from Australia!

John Coyle
Brisbane, Australia

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Re: Macro lens: Some insight needed!

2001-06-26 Thread Ayash Kanto Mukherjee


Hi Dan!
I shall be photographing mostly insects whose dimensions are less than
24mm by 36mm, therefore a 1:1 macro lens is essential for that. I have to
choose which focal length. Shall I go for (90/100/105mm) or
(180/200mm). Both have some advantages and disadvantages. Probably the
degree of alien sensitivity of the insects will give me the idea what
working distance shall I choose and that will tell me which focal length
to choose.

Regards,
Ayash Kanto.

On Tue, 26 Jun 2001, Dan Scott wrote:

> Hi Ayash,
> 
> I have the FA 100/2.8 macro, which is 1:1, but I'm willing to bet that for
> the vast majority of my shots with it (mostly flowers and occassionally
> bugs) 1:2 would have been plenty. As you say, it depends on what you want
> to use the lens for.
> 
> Dan Scott
> [EMAIL PROTECTED]

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Re: question for the technically inclined

2001-06-26 Thread Jan van Wijk

On Mon, 25 Jun 2001 16:29:04 EDT, [EMAIL PROTECTED] wrote:

>With people having such an 
>astounding knowledge of computer programming, solid-state electronics, as 
>well as plain old photographic know how, could not the electronics of the 
>super-program be upgraded? Similar to souping-up the electronics in a high 
>performance sports car to get better gas mileage or accelerate better, etc. 
>Surely this is possible. Has anyone ever done it, tried it, thought about it? 
>Would the operation mean more than programming a chip which would replace the 
>current ones? Could the super-program be capable of a more user friendly 
>flash operation, or am I dreaming of too much for antiquated technology?

I think this will stay wishfull thinking ...

Sure, technically you could improve on older designs like this but:
- You probably cannot get enough technical details on the current implementation (from 
Pentax)
- I don't think the camera from the eighties used (re)programmable chips yet, they
   probably had factory programmable stuff and some dedicated electronics


Regards, JvW

(Electronic engineer and programmer :-)


-
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Re[2]: Best ISO 400 Negatine Film

2001-06-26 Thread Alin Flaider

David wrote:

DAM>  HDC Plus replaced HDC down here.  Is Vista a replacement for the HDC Plus
DAM> line, or is it a different name for the same thing in a different market?

  Agfa Vista replaces the former HDC Plus. The news I hear are not so
  good, as Vista emulsions are designed to be more saturated and
  vivid. With HDC Plus 100 it goes the last mild film of the consumer
  line. After the high-contrast Superia 100 and Gold 100, now Agfa
  bows before the horde of low contrast - low everything compact
  cameras.

  Servus, Alin


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Re: Macro lens: Some insight needed!

2001-06-26 Thread Ayash Kanto Mukherjee


So, there are ways out to problem like this, I mean; how to photograph
dragonflies. Only experienced people can tell us solutions like this.

Regards,
Ayash Kanto.

On Mon, 25 Jun 2001, John Mustarde wrote:

> On Mon, 25 Jun 2001 16:15:26 -0800, you wrote:
> 
> > Oh, and dragonflies.. just require some stalking and spending some time
> >finding their favorite lookout point.  The ones with lookouts farthest from
> >the water seem to be the easiest to shoot too (probably more tired or
> >something).
> 
> Dragonflies love flash. It's a bright light source that
> could possibly attract prey.
> 
> Just fire the flash (use the test button) in the
> general vicinity of a dragonfly on its perch. It will
> either stay in position and motionless for several
> minutes, or move away then come back near the flash
> source fairly quickly.
> 
> Most everything anyone needs to know about macro
> photography in the field is covered in Shaw's book
> called, I think, Closeups in Nature.
> 

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Re: Naive question, viewfinder magnification

2001-06-26 Thread Alan Chan

>I was just wondering, what's the significance of viewfinder magnification?  
>I know that since I am used to my MX and ME Supers, I found it quite hard 
>to manually focus on my friend's MZ-5n.  So my initial thought was that the 
>bigger the better.  But then I noticed that the LX officially has a smaller 
>magnification than the MX.  In fact, all Pentax cameras have smaller 
>magnification than the MX.  So what's up?

AFAIK, MX has the highest magnificantion of all Pentax K mount bodies. I 
have had MX, LX, Super A/Program, P50, MZ-M and Z-1p over the years. I was 
amazed by how difficult to focus with the MZ-M due to the low 
magnificantion, because afterall, it's a manual focus body where good 
quality viewfinder is essential IMO.

>Incidentally, according to the brochures on the Pentax USA website, the 
>MZ-S has a viewfinder magnification of 0.75x, where as that of the MZ-5n is 
>0.8x.

That's bad. :(

>I've heard people complain that they can't see all of the viewfinder in the 
>MX, and I know I have to press the camera hard into my face so that I can 
>see all of it.  But why can't Pentax keep the same viewfinder magnification 
>on the MX and just make the rear window bigger?  Am I just being too naive 
>here?

I has been wondering the same too. Nikon made something called action finder 
for their F bodies so my only conclusion is cost cutting.
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Re: OT: liquid B&W print emulsion?

2001-06-26 Thread David A. Mann

Aaron Reynolds writes:

> A fellow who used to work for Ilford UK a while back was in the store
> entertaining us with tales of printing the giant photographic mural for
> the background of the BBC news, with their 8x10 enlarger up in the
> rafters and the sheet of paper on the floor, and developing it with
> pushbrooms dipped in developer.

 I once watched a signwriter trace his lettering on a wall from a transparency 
he was projecting.  He did this at night, obviously.  The image was quite dim 
due to its size but he seemed to be able to trace it quite well.

Cheers,


- Dave

David A. Mann, B.E. (Elec)
http://www.digistar.com/~dmann/

"Why is it that if an adult behaves like a child they lock him up,
 while children are allowed to run free on the streets?" -- Garfield
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Re: Macro lens: Some insight needed!

2001-06-26 Thread Ayash Kanto Mukherjee

On Mon, 25 Jun 2001, Rodger Whitlock wrote:
> If you are seriously interested, I direct you to the following Kodak 
> publications:
> 
> N12A: Close-Up Photography (essentially up to 3x lifesize)
> N12B: Photomacrography (3x to 50x lifesize)
> 
> N16: combined hardback edition of N12A & N12B
> 
> 
> These were first published around 1969; I do not know if they are 
> still in print, but may be worth pursuing. I was lucky enough to find 
> a second hand copy of N16.
> 

Hi!
Glad to recieve your reply and I will try to get those books that you have
referenced. Many thanks for that.

After recieving so many feedbacks about various aspects of
macrophotography, I think my insight towards this subject is getting
clearer.

With kind regards,
Ayash Kanto.

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Re: Macro lens: Some insight needed!

2001-06-26 Thread Ayash Kanto Mukherjee


Hi Patrick!
It seems to me that you quite lot of experience with Macrophotography of
insects (I have not yet started. Ahhh! that close up kit; I want to kick
it off) and I think that it would be helpful in the near future when I you
can see me chasing the insects with the macro lens on my camera.

Thanks for sharing your wonderful experience especially with dragon flies
and jumping spiders.

With kind regards,
Ayash Kanto.



On Mon, 25 Jun 2001, Patrick White wrote:

>   I've done 1:1 shots of dragonflies using a 100mm on extension.  Much easier
> to use the 200mm though, but even then, you need to stalk them a bit.  1:1
> shots of ladybugs are also pretty easy unless they are wandering around
> looking for food (they are fast-crawling insects).  7:1's of non-flying
> aphids are even easier (pluck the leaf and take 'em into the studio :-)
>   11.4 inches will be pleanty far enough provided you stay with the easier
> insects at first.  However, try them all.  You'll soon learn which ones
> you're good at stalking and which you need to get better before doing.  I
> think my first 1:1 macro shot was of a housefly -- it was chilly, the sun
> was in the right direction and I'd had lots of practice stalking them from
> when I used to flick them with my fingers as a kid).
> 
>   Personally, I've found the hardest insects to get pictures of are jumping
> spiders and hoverflies (still haven't managed either).  Hoverflies are just
> skittish beasts, but last summer I concluded that the working distance of a
> 200mm should be just workable for them (reasonable percentage of successful
> stalkings).
>   Jumping spiders, on the other hand, are absolutely impossible for me.  They
> have stunning vision for an insect.  They get scared and run away when I get
> within about 3 ft (1m) of them and get scared and move way sooner than that.
> Hoverflies are downright easy in comparison.
>   Oh, and dragonflies.. just require some stalking and spending some time
> finding their favorite lookout point.  The ones with lookouts farthest from
> the water seem to be the easiest to shoot too (probably more tired or
> something).
> 
> hope that helps,
> patbob ([EMAIL PROTECTED] [EMAIL PROTECTED])

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Re: Macro lens: Some insight needed!

2001-06-26 Thread Jan van Wijk

On Tue, 26 Jun 2001 12:19:24 +0530 (IST), Ayash Kanto Mukherjee wrote:

>It is great. Have you tried some bugs/bees having dimension less than 24mm
>by 36mm?

Yes, I also did bees and flies, usualy sitting on flowers, gathering food ...

> Butterflies, in general, are quite big but they are alien
>sensitive. It is good to here that a macro lens with a minimum focussing
>distance of 1 feet can take shots of butterfly but you don't need to go
>that close to the subject unless and until it smaller than you negetive
>frame, isn't it?

That is right, I usualy calculate more with magnification factor more than with
focusing distance anyway. Makes it easier to compare lenses too.

The focusing distance is measured from subject to the filmplane, what you
really want to know for macro is the distance from the front-lens to the subject,
and that depends on the focal length of the lens but also the build of it.

BTW: One advantage of the 100mm macro lenses is that they are a bit closer, 
allowing better coverage by a ring-light (flash).
I sometimes find that the 200mm macro is too far away to use the AF-140C flash
wich has a rather low guidenumber.

Regards, JvW


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Jan van Wijk;   www.fsys.demon.nl


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