I don't know. I think we're spoiled. Sure small sensor cameras lack
dynamic range, when compared to larger formats, but compare any format
larger than 1" to 35mm slide film. Even 35mm reversal film didn't have
13+ stops of dynamic range.
On 1/9/2017 6:12 PM, steve harley wrote:
On
Mark, I trusted you... and you...
I took some inexpensive lenses out of the closet, and tried them...
Their quality didn't go up. You mislead /me!
;-)
Igor
Mark Roberts Mon, 09 Jan 2017 07:44:18 -0800 wrote:
Collin B wrote:
The only rough point is the price of good lenses. They've gone up
On 2017-01-09 8:21 , Collin B wrote:
When I look at almost everyone's digital camera offerings, they're all so
good.
i think the smaller-sensor cameras still need a new sensor technology to
surpass their limits in dynamic range and low light capabilities; plus EVF
display tech could still
Collin B wrote:
>The only rough point is the price of good lenses. They've gone up while
>bodies drop.
But on the other hand the *quality* of inexpensive lenses has gone up.
Way up.
--
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www.robertstech.com
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PDML Pentax-Discuss Mail List
When I look at almost everyone's digital camera offerings, they're all so
good.
Even the slowest AF is quite quick & does a fine job.
The features, like geotagging/gps were unimaginable with film.
Pixel shift improves on the in-camera edge processing. Others will follow.
Once we got
I hate it. It should be taken out and shot! AOL would be ashamed to present
such a kludgy interface.
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In Kansas City we were blessed with Time Warner Cable, and had the free Road
Runner account.
I think their advertising slogan should be: It will cost you nothing but pain.
I chose to pay to get an alternate ISP.
stan
On Jan 14, 2013, at 2:42 PM, jsessoms...@nc.rr.com jsessoms...@nc.rr.com
On 5/6/12, Mark Roberts, discombobulated, unleashed:
What would be cool would
be an ND filter that went behind the reflex mirror and in front of the
sensor.
My video camera has three NDs on a wheel exactly in that place.
--
Cheers,
Cotty
___/\__
|| (O) | People, Places, Pastiche
...@pdml.net [mailto:pdml-boun...@pdml.net] On Behalf Of
Larry Colen
Sent: 04 June 2012 23:22
To: Pentax-Discuss Mail List
Subject: How much difference does optimizing the aperture make?
I was thinking about my quest for sharpness, and was considering trying
to do some research into what the aperture
On Jun 4, 2012, at 17:31 , J.C. O'Connell wrote:
In theory a perfect lens would be sharpest wide open, so a really good lens
would be sharpest close to wide open. If it takes 4 or 5 stops to sharpen up
a lens, its probably not that great. As for good rules of thumb, I find f5.6
or f8 to
Just remember - while all of this is mildly interesting, it doesn't
really make a lot of difference to the end result. When you're
looking at the photograph on a screen or paper, the tiny differences
are extremely hard to see.
If the differences in f-stops are that distinct in a modern lens, you
Larry Colen wrote:
I was thinking about my quest for sharpness, and was considering trying
to do some research into what the aperture sweet spot is for each lens,
and was wondering if anyone had already made a chart of them.
The sweet spot for sharpness is usually around f/5.6-f/8, depending
Less than actually getting the subject in focus does.
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From: pdml-boun...@pdml.net [mailto:pdml-boun...@pdml.net] On Behalf Of
Mark Roberts
(Also, sharpness
and shutter speed can be a trade-off too if you're trying to get motion
blur from long shutter speed. I run into this problem when shooting
waterfalls and such and I'm forced to stop way
On 6 June 2012 00:10, Bob W p...@web-options.com wrote:
From: pdml-boun...@pdml.net [mailto:pdml-boun...@pdml.net] On Behalf Of
Mark Roberts
(Also, sharpness
and shutter speed can be a trade-off too if you're trying to get motion
blur from long shutter speed. I run into this problem
Bob W wrote:
From: pdml-boun...@pdml.net [mailto:pdml-boun...@pdml.net] On Behalf Of
Mark Roberts
(Also, sharpness
and shutter speed can be a trade-off too if you're trying to get motion
blur from long shutter speed. I run into this problem when shooting
waterfalls and such and I'm forced
From: pdml-boun...@pdml.net [mailto:pdml-boun...@pdml.net] On Behalf Of
Mark Roberts
Bob W wrote:
From: pdml-boun...@pdml.net [mailto:pdml-boun...@pdml.net] On Behalf
Of Mark Roberts (Also, sharpness and shutter speed can be a trade-
off
too if you're trying to get motion blur from
Also a factor, the longer the lens, the narrower the depth of field at the same
f stop on a shorter lens.
-Original Message-
From: Mark Roberts postmas...@robertstech.com
Sent: Jun 5, 2012 9:27 AM
To: Pentax-Discuss Mail List pdml@pdml.net
Subject: Re: How much difference does optimizing
re: diffraction vs DOF
Please see Charles Nam's most reasonable *comment* in response to the
article on the following page:
http://www.theatreofnoise.com/2011/06/choosing-optimal-aperture-to-avoid.html
The problem with dealing in mathematical formula is that they are not
Real World and do not
Subject: Re: How much difference does optimizing the aperture make?
Also a factor, the longer the lens, the narrower the depth of field at the
same f stop on a shorter lens.
-Original Message-
From: Mark Roberts postmas...@robertstech.com
Sent: Jun 5, 2012 9:27 AM
To: Pentax-Discuss Mail List
I was thinking about my quest for sharpness, and was considering trying to do
some research into what the aperture sweet spot is for each lens, and was
wondering if anyone had already made a chart of them.
Then I wondered how much it really matters. I've heard a couple of stops down
from wide
On 2012-06-04 18:22, Larry Colen wrote:
Then I wondered how much it really matters. I've heard a couple of stops down from wide
open, anywhere between f/8 and f/16, and a couple other rules of thumb. I do
know that on some lenses, particularly the FA50/1.4, that stopping it down a couple
On Mon, Jun 4, 2012 at 6:22 PM, Larry Colen l...@red4est.com wrote:
optimizing aperture for
sharpness is not the most productive place to spend my time and energy.
Mark!
Apologies for taking that out of context. :-)
That I'm generally best optimizing the aperture for the picture, and not
I never really spent too much time worrying about researching the
sweet spot. I just chose the aperture that gave me the DoF I wanted.
That said, with the D800's stupidly high resolution, it really pays to
hit the sweet spot.
DS
On 5 June 2012 06:53, Bruce Walker bruce.wal...@gmail.com wrote:
the aperture sweet spot is for each lens, and was
wondering if anyone had already made a chart of them.
Then I wondered how much it really matters. I've heard a couple of stops
down from wide open, anywhere between f/8 and f/16, and a couple other
rules of thumb. I do know that on some
Larry's ideas:
I was thinking about my quest for sharpness, and was considering
trying to do some research into what the aperture sweet spot is for
each lens, and was wondering if anyone had already made a chart of
them.
Then I wondered how much it really matters. I've heard a couple
On 6/4/2012 6:22 PM, Larry Colen wrote:
I was thinking about my quest for sharpness, and was considering trying to do some
research into what the aperture sweet spot is for each lens, and was
wondering if anyone had already made a chart of them.
Then I wondered how much it really matters
the aperture sweet spot is for each lens, and
was wondering if anyone had already made a chart of them.
Then I wondered how much it really matters. I've heard a couple of stops
down from wide open, anywhere between f/8 and f/16, and a couple other
rules of thumb. I do know that on some
-
J.C.O'Connell
hifis...@gate.net
-
-Original Message-
From: pdml-boun...@pdml.net [mailto:pdml-boun...@pdml.net] On Behalf Of Mark
C
Sent: Monday, June 04, 2012 8:06 PM
To: Pentax-Discuss Mail List
Subject: Re: How much difference does optimizing the aperture make?
On 6/4/2012 6
a chart of them.
Then I wondered how much it really matters. I've heard a couple of stops
down from wide open, anywhere between f/8 and f/16, and a couple other
rules of thumb. I do know that on some lenses, particularly the FA50/1.4,
that stopping it down a couple of stops from wide
how much it really matters. I've heard a couple of stops down from wide
open, anywhere between f/8 and f/16, and a couple other rules of thumb. I do
know that on some lenses, particularly the FA50/1.4, that stopping it down a couple of stops from
wide open, makes a huge difference. And I
IMO in this kind of discussion it just might be useful to play the role
of devil's advocate.
Most of my shooting not for my own pleasure is for Galia's class. When
it started I was obsessed with technical quality - sharpness, etc. As
time goes by, I am starting to understand that slightly
into what the aperture sweet spot is for each lens, and was
wondering if anyone had already made a chart of them.
Then I wondered how much it really matters. I've heard a couple of stops
down from wide open, anywhere between f/8 and f/16, and a couple other
rules of thumb. I do know
From: James King
Steven Desjardins wrote on Mon, 02 Apr 2012 16:26:32 -0700
It would go so well with my white loafers . . .
Just think? A white Leica, white shoes, and loud sports coat - a full
Cleveland!
Regards, Jim
A white sports coat and a pink crustacean ...
Steven Desjardins wrote on Mon, 02 Apr 2012 16:26:32 -0700
It would go so well with my white loafers . . .
Just think… A white Leica, white shoes, and loud sports coat - a full
Cleveland!
Regards, Jim
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there?
:-)
cheers,
frank, wondering where Gateboy is
What can be asserted without proof can be dismissed without proof. --
Christopher Hitchens
--- Original Message ---
From: Godfrey DiGiorgigdigio...@gmail.com
Sent: April 2, 2012 4/2/12
To: Pentax-Discuss Mail Listpdml@pdml.net
Subject: Re: Considering how
...don't you think the company could afford a more skilled Photoshop
artist to create their composite images?
http://www.engadget.com/2012/03/22/leicas-m9-p-white-unicorn-for-japan/
(Perhaps the image was put together by Engadget...)
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That albino Leica should look good in the glovebox of the 2012
Mercedes-Benz SLS AMG Roadster that I will order at the same time
(assuming that ship comes in some time soon.)
:)
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to UNSUBSCRIBE from the
lol! are we sure that isn't a late April Fools Day joke?
Can't imagine who would buy a white leather-covered camera.
one misleading detail, however, is saying that the unicorn variant
goes for $31,770 over the regular model's $8,000. Regular model M9-P
(itself a special variant ...!) goes for
---
From: Godfrey DiGiorgi gdigio...@gmail.com
Sent: April 2, 2012 4/2/12
To: Pentax-Discuss Mail List pdml@pdml.net
Subject: Re: Considering how much Leicas cost...
lol! are we sure that isn't a late April Fools Day joke?
Can't imagine who would buy a white leather-covered camera.
one misleading detail
lol! are we sure that isn't a late April Fools Day joke?
Can't imagine who would buy a white leather-covered camera.
Inuit with more blubber than sense
one misleading detail, however, is saying that the unicorn variant goes
for $31,770 over the regular model's $8,000. Regular model M9-P
I think we can all agree that a $31,770 white leather Leica is a joke.
The real question is whether or not they intended it as such.;-)
On Mon, Apr 2, 2012 at 3:44 PM, Bob W p...@web-options.com wrote:
lol! are we sure that isn't a late April Fools Day joke?
Can't imagine who would buy a
From: Mark Roberts
...don't you think the company could afford a more skilled Photoshop
artist to create their composite images?
http://www.engadget.com/2012/03/22/leicas-m9-p-white-unicorn-for-japan/
(Perhaps the image was put together by Engadget...)
Sad.
Already up on Photoshop Disasters.
On Apr 2, 2012, at 15:16, John Sessoms wrote:
From: Mark Roberts
...don't you think the company could afford a more skilled Photoshop
artist to create their composite images?
http://www.engadget.com/2012/03/22/leicas-m9-p-white-unicorn-for-japan/
(Perhaps the image was put together by
It would go so well with my white loafers . . .
On Mon, Apr 2, 2012 at 5:36 PM, Charles Robinson charl...@visi.com wrote:
On Apr 2, 2012, at 15:16, John Sessoms wrote:
From: Mark Roberts
...don't you think the company could afford a more skilled Photoshop
artist to create their composite
From: Charles Robinson
On Apr 2, 2012, at 15:16, John Sessoms wrote:
From: Mark Roberts
...don't you think the company could afford a more skilled Photoshop
artist to create their composite images?
http://www.engadget.com/2012/03/22/leicas-m9-p-white-unicorn-for-japan/
(Perhaps the image was
Memory ... ah ... brings back memories of a particular comp sci
instructor I had. He said, when you're designing a system, you have
three choices on any particular feature: zero (don't implement it), one
(duh!), or a practically infinite number of them (enough so that the
user never notices
On 2011-03-18 19:44 , eckinator wrote:
thanks, guys
my problem is I have no idea what the iPad is practical for; thus far
I've ignored iProducts altogether - what are the most common storage
intensive things that you use it for?
i have a 16GB iPhone 4, which is comparable to an iPad in some
-Original Message-
From: pdml-boun...@pdml.net [mailto:pdml-boun...@pdml.net] On Behalf Of
Igor Roshchin
You should watch this old clip about iPad:
http://www.youtube.com/watch?v=lsjU0K8QPhs
I also hope you saw these old clips about i-products:
On Fri, Mar 18, 2011 at 6:44 PM, eckinator eckina...@gmail.com wrote:
my problem is I have no idea what the iPad is practical for; thus far
I've ignored iProducts altogether - what are the most common storage
intensive things that you use it for?
For me, it works for:
- the usual stuff
roflmao these are brilliant... seems I will have to get an iRack for my iPad =)
2011/3/19 Igor Roshchin s...@komkon.org:
Ecke,
You should watch this old clip about iPad:
http://www.youtube.com/watch?v=lsjU0K8QPhs
I also hope you saw these old clips about i-products:
thanks godfrey - does it handle ms office and pdf files? and how much
do you spend on apps? and i hear it doesn't support flash - how much
of a problem is that? also what about content restrictions you read
about?
thanks again
ecke
2011/3/19 Godfrey DiGiorgi gdigio...@gmail.com:
On Fri, Mar 18
thanks steve - you wrote most apps useless
I'm a bit worried i might wind up with a 700 € movie player plus
browser status symbol
can it for example be used to provide remote support or for
system/network documentation purposes? are there IT tools available to
run on it?
thanks again
ecke
Yes remote support apps for RDP or even better Logmein Ignition. My
primary use is as a pdf reader. iAnnotate is very handy. I rarely use
the browser.
Toine
On 19 March 2011 20:23, eckinator eckina...@gmail.com wrote:
thanks steve - you wrote most apps useless
I'm a bit worried i might wind up
On Mar 19, 2011, at 3:35 AM, Bob W wrote:
-Original Message-
From: pdml-boun...@pdml.net [mailto:pdml-boun...@pdml.net] On Behalf Of
Igor Roshchin
You should watch this old clip about iPad:
http://www.youtube.com/watch?v=lsjU0K8QPhs
I also hope you saw these old clips about
On 2011-03-19 13:23 , eckinator wrote:
thanks steve - you wrote most apps useless
well, more than half of the 200+ i never use, thus they are literally
useless to me; most of these were free, so i just wasted a little time
trying them out once; but there are also very useful apps, it pretty
:
thanks godfrey - does it handle ms office and pdf files? and how much
do you spend on apps? and i hear it doesn't support flash - how much
of a problem is that? also what about content restrictions you read
about?
thanks again
ecke
2011/3/19 Godfrey DiGiorgi gdigio...@gmail.com:
On Fri, Mar 18
On Sat, Mar 19, 2011 at 1:50 PM, steve harley p...@paper-ape.com wrote:
thanks steve - you wrote most apps useless
well, more than half of the 200+ i never use, thus they are literally
useless to me; most of these were free, so i just wasted a little time
trying them out once; but there are
All you really need is enough memory to remember where you left it.
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I need to buy one as a demonstration system for my business and can't
decide whether to be sensible and buy el cheapo 16 gb or one of the
bigger ones - does anyone have experience with one?
thanks
Ecke
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On 2011-03-18 17:20 , eckinator wrote:
I need to buy one as a demonstration system for my business and can't
decide whether to be sensible and buy el cheapo 16 gb or one of the
bigger ones - does anyone have experience with one?
i have a little experience, and have been planning a purchase of
On Fri, Mar 18, 2011 at 4:44 PM, steve harley p...@paper-ape.com wrote:
On 2011-03-18 17:20 , eckinator wrote:
I need to buy one as a demonstration system for my business and can't
decide whether to be sensible and buy el cheapo 16 gb or one of the
bigger ones - does anyone have experience
thanks, guys
my problem is I have no idea what the iPad is practical for; thus far
I've ignored iProducts altogether - what are the most common storage
intensive things that you use it for?
thanks again
ecke
2011/3/19 Godfrey DiGiorgi gdigio...@gmail.com:
On Fri, Mar 18, 2011 at 4:44 PM, steve
Ecke,
You should watch this old clip about iPad:
http://www.youtube.com/watch?v=lsjU0K8QPhs
I also hope you saw these old clips about i-products:
http://www.youtube.com/watch?v=rw2nkoGLhrE
http://www.youtube.com/watch?v=xgZKjJt-TkU
Cheers,
Igor
PS. And it blends well:
Then watch this clip about the iPad2.
http://www.wimp.com/ipadtwo/
On Fri, Mar 18, 2011 at 10:53 PM, Igor Roshchin s...@komkon.org wrote:
Ecke,
You should watch this old clip about iPad:
http://www.youtube.com/watch?v=lsjU0K8QPhs
I also hope you saw these old clips about i-products:
...@gmail.com
Subject: OT: iPad - how much memory is enough?
I need to buy one as a demonstration system for my business and can't
decide whether to be sensible and buy el cheapo 16 gb or one of the
bigger ones - does anyone have experience with one?
thanks
Ecke
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And don't forget this
http://cdn2.techie-buzz.com/images2/keith/Introducing-Apple-iWater-Geeky-Fun_FCF1/apple_iwater.jpg
On 3/18/2011 10:53 PM, Igor Roshchin wrote:
Ecke,
You should watch this old clip about iPad:
http://www.youtube.com/watch?v=lsjU0K8QPhs
I also hope you saw these old clips
Le 22/06/10 01:20, Brian Walters a écrit :
On Mon, 21 Jun 2010 11:52 -0400, P. J. Alling
webstertwenty...@gmail.com wrote:
Quite silly really.
There's not enough silliness in the world in my opinion.
the Monty Python are sorely missed ... ;-)
dominique
--
PDML
2010/6/22 Brian Walters supera1...@fastmail.fm:
There's not enough silliness in the world in my opinion.
Agreed!
Great fun, Dan! Thanks for posting.
Here's another source trying to compensate, along the same vein:
http://www.jir.com/
:-)
--
http://www.alunfoto.no/galleri/
Repeating that reasoning we can arrive to the similar figure of atoms
from A. Einstein, J. Christ, D. Maradona (still alive, by the way) and
many other historical figures within us. I demand to be allowed to carry
my own atoms and as such I demand that they be calculated in a proper
and
Boris Liberman wrote:
Repeating that reasoning we can arrive to the similar figure of atoms from
A. Einstein, J. Christ, D. Maradona (still alive, by the way) and many
other historical figures within us.
Well, not actually, as Shakey has been alive for 52 years, while Christ just
for 33.
2010/6/22 Dario Bonazza dario.bona...@virgilio.it:
Repeating that reasoning we can arrive to the similar figure of atoms from
A. Einstein, J. Christ, D. Maradona (still alive, by the way) and many other
historical figures within us.
Well, not actually, as Shakey has been alive for 52 years,
--
From: eckinator
Subject: Re: OT: How much of the Bard is in each of us?
What we all seem to forget is that none of said atoms ever were in any
way /originally/ associated with any one of said individuals. Or any
other, for that matter.
Good
2010/6/22 William Robb war...@gmail.com:
Good thing too, since a lot of us probably also share atoms with Attila the
Hun, Adolf Hitler, etc.
Gotta take the bad with the good
Come to think of it, next time I try to pick up a woman at a bar, I
will tell her I have some 20 billion or so of
You had sex with George Clooney?
On Tue, Jun 22, 2010 at 11:48 AM, eckinator eckina...@gmail.com wrote:
2010/6/22 William Robb war...@gmail.com:
Good thing too, since a lot of us probably also share atoms with Attila the
Hun, Adolf Hitler, etc.
Gotta take the bad with the good
Come
2010/6/22 Daniel J. Matyola danmaty...@gmail.com:
You had sex with George Clooney?
Naah... I already have a Nespresso machine... =P
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http://www.jupiterscientific.org/review/shnecal.html
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Daniel, this makes cannibalism obsolete - you deserve a Nobel Peace Prize =)
Cheers
Ecke
2010/6/21 Daniel J. Matyola danmaty...@gmail.com:
http://www.jupiterscientific.org/review/shnecal.html
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to
Of course, the calculations are not mine, but those of the folks at
Jupiter Scientific, who try to make science topics interesting.
Dan
On Mon, Jun 21, 2010 at 9:42 AM, eckinator eckina...@gmail.com wrote:
Daniel, this makes cannibalism obsolete - you deserve a Nobel Peace Prize =)
Cheers
Quite silly really.
On 6/21/2010 9:41 AM, Daniel J. Matyola wrote:
http://www.jupiterscientific.org/review/shnecal.html
--
{\rtf1\ansi\ansicpg1252\deff0\deflang1033{\fonttbl{\f0\fnil\fcharset0 Courier
New;}}
\viewkind4\uc1\pard\f0\fs20 I've just upgraded to Thunderbird 3.0 and the
On Mon, 21 Jun 2010 11:52 -0400, P. J. Alling
webstertwenty...@gmail.com wrote:
Quite silly really.
There's not enough silliness in the world in my opinion.
:-)
Cheers
Brian
++
Brian Walters
Western Sydney Australia
http://members.westnet.com.au/brianwal/SL/
Guys and gals,
I just sent off a manuscript for a personal photo book to a
Norwegian vendor. 58 pages, 30x30 cm, hardcover. I'll be sitting on my
hands waiting for it to turn up in the mail so I can see the quality,
but this print shop as a good reputation.
Basically, I did this for myself only.
On Mon, Apr 5, 2010 at 2:10 PM, AlunFoto alunf...@gmail.com wrote:
Guys and gals,
I just sent off a manuscript for a personal photo book to a
Norwegian vendor. 58 pages, 30x30 cm, hardcover. I'll be sitting on my
hands waiting for it to turn up in the mail so I can see the quality,
but this
AlunFoto wrote:
Guys and gals,
I just sent off a manuscript for a personal photo book to a
Norwegian vendor. 58 pages, 30x30 cm, hardcover. I'll be sitting on my
hands waiting for it to turn up in the mail so I can see the quality,
but this print shop as a good reputation.
Basically, I did
On 5/4/10, AlunFoto, discombobulated, unleashed:
I just sent off a manuscript for a personal photo book to a
Norwegian vendor. 58 pages, 30x30 cm, hardcover. I'll be sitting on my
hands waiting for it to turn up in the mail so I can see the quality,
but this print shop as a good reputation.
Jostein, I'd gladly pay USD 50 or so for such a book. Or perhaps even
USD 100. But then I would ask you to sign it for me. In fact, this is
what I am asking you to do right now.
Boris
On 4/6/2010 12:10 AM, AlunFoto wrote:
Guys and gals,
I just sent off a manuscript for a personal photo
Please answer fast, just found it in the bay and it is about to end 220556654576
TY so much
Ecke
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I do not really need one but one good priced, I think. Even for
resale, it may tempt me.
--
Thibault Massart aka Thibouille
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Photo: K10D,Z1,SuperA,KX,MX, P30t and KR-10x ;) ...
Thinkpad: X23+UB,X60+UB
Programing: D7 user (trying out D2007)
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To: pdml@pdml.net
Sent: Sunday, July 26, 2009 5:21 AM
Subject: How much would you pay for an FA 50/2.8 macro?
I do not really need one but one good priced, I think. Even for
resale, it may tempt me.
--
Thibault Massart aka Thibouille
--
Photo: K10D,Z1
Clothing and Gear: The Complete Hamley
Catalog of 1942. If pressed, I'd throw in spurs, but they'd be used
spurs.
;-)
Cheers, Christine
- Original Message - From: Thibouille pentaxl...@gmail.com
To: pdml@pdml.net
Sent: Sunday, July 26, 2009 5:21 AM
Subject: How much would you
wondering if one of the tech-oriented actually knows the
image circle dimensions for the DA lenses, and how much is missing. I
know the difference should be proportional to the difference from APS-C
to 24x36mm, but would like ko know the size and borderline falloff
evolution on the DA lenses
circle of DA lenses: how much smaller than FF?
Luiz Felipe wrote:
I was looking for data on the available 180~200mm 2.8 lenses for K and
EF mounts, and found some story about how the DA* 200 2.8 is related
to
the former 200mm full frame and so it possibly would cover said full
frame
is the first chapter in the book of wisdom - Thomas Jefferson
-Original Message-
From: pdml-boun...@pdml.net [mailto:pdml-boun...@pdml.net] On Behalf Of
Joseph McAllister
Sent: Wednesday, April 29, 2009 6:09 PM
To: Pentax-Discuss Mail List
Subject: Re: image circle of DA lenses: how much smaller
is related to
the former 200mm full frame and so it possibly would cover said full frame.
That got me wondering if one of the tech-oriented actually knows the
image circle dimensions for the DA lenses, and how much is missing. I
know the difference should be proportional to the difference from
circle dimensions for the DA lenses, and how much is missing. I
know the difference should be proportional to the difference from APS-C
to 24x36mm, but would like ko know the size and borderline falloff
evolution on the DA lenses.
Just wondering, TIA. :-)
LF
--
Luiz Felipe
luiz.felipe
actually knows the
image circle dimensions for the DA lenses, and how much is missing. I
know the difference should be proportional to the difference from APS-C
to 24x36mm, but would like ko know the size and borderline falloff
evolution on the DA lenses.
Just wondering, TIA. :-)
It varies. Some
.
That got me wondering if one of the tech-oriented actually knows the
image circle dimensions for the DA lenses, and how much is missing. I
know the difference should be proportional to the difference from APS-C
to 24x36mm, but would like ko know the size and borderline falloff
evolution
- Original Message -
From: John Francis
Subject: Re: image circle of DA lenses: how much smaller than FF?
Above some focal length (well below 200mm) it's likely that just about
any lens will have an image circle easily large enough to cover 36x24mm.
But, as Ned Bunnell point out
under fire. Granted there are other considerations,
but all the same, the [image circle - light fallof] limit may be not so
real, for good part of the lenses.
LF
William Robb escreveu:
- Original Message -
From: John Francis
Subject: Re: image circle of DA lenses: how much smaller
- Original Message -
From: Luiz Felipe
Subject: Re: image circle of DA lenses: how much smaller than FF?
Guess I will have to read that debate...
Bottom line - never mind a full frame dslr isn't available from Pentax and
most likely will never be - wich current (DA included
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