One reason why High ISO quality is such a hobbyhorse is that
so many people are trying to achieve shots that need a fast
prime with a slow (f4 or slower) zoom. You NEED good high
ISO when you're stuck at f5.6 70mm and the guy next to
you is shooting wide open with his 85/1.4 at ISO 800.
-Adam
Tom C wrote:
> Most of you guys are missing my point, or maybe I'm not
acknowledging
> that I get yours.
>
> I'm just trying to say that high ISO quality seems to
viewed as a holy
> grail in digital photography, and my perception, right,
wrong, or
> skewed, is that with film photography it was generally
accepted that you
> were going to sacrifice image quality when shooting
high ISO film to get
> the shot. Of course the same happens with digital, the
higher the ISO,
> the noisier the image, or the heavier the noise
reduction, losing detail.
>
> My comments were that high ISO image quality suffers
whether using film
> or digital, so I wouldn't mind a FF DSLR with great low
- mid ISO
> performance and mediocre/poor high ISO performance,
because... ta da!
> 
I expect mediocre/poor high ISO performance anyway. I have
not shot
> one image on the *ist D at 1600 ISO that I can say I'm
really happy
> with. Even if it is a nice shot, I can see that it
would have better
> with a tripod and lower ISO.
>
> I thoroughly understand that some kinds of photography
and venues
> dictate the use of high ISO.
>
> Tom C.
>
>
>> From: "P. J. Alling" <webster26mindspring.com>
>> Reply-To: Pentax-Discuss Mail List <pdmlpdml.net>
>> To: Pentax-Discuss Mail List <pdmlpdml.net>
>> Subject: Re: Next move from Pentax: hints about
sensor for next camera(s)
>> Date: Mon, 22 Oct 2007 11:12:35 -0400
>>
>> Tri-X heads shooting available light were always
looking for more speed.
>> It was the content that counted not so much the
quality. I find that
>> both the *ist-D and Ds give better results at 1600
than most any film
>> I've ever used. It's worth raving about.
>>
>> Tom C wrote:
>> > With the caveat regarding who knows about
Pentax?...
>> >
>> > I'd take a full frame sensor that did very
well between 200 - 400
>> ISO any
>> > day (ISO 800) w/b nice, over any sensor that
had marginal high ISO
>> > performance at 1600 and above. I find any
photo I take at 1600 or
>> higher
>> > with the *ist D to be, while documentary, not
worth a heck of alot
>> > otherwise. I am loathe to set ISO over 800.
>> >
>> > Thinking back to film, I rarely shot anything
over 400, and many
>> times I was
>> > pushing 100 two stops to get 400. When I
needed more light gathering
>> > ability the camera was on a tripod and I used
longer shutter speeds.
>> >
>> > I wouldn't mind that at all because I find the
high ISO performance of
>> > DSLR's to be no more desirable than the
performance of high ISO films.
>> >
>> > Who *seriously* shoots at ISO1600+ and gets
results they would rave
>> about?
>> > For my kind of photgraphy it doesn't work near
as well as a lower
>> ISO and a
>> > tripod.
>> >
>> > Tom C.
>> >
>> >
>> >
>> >
>> >> From: Mark Roberts <msroberts01ysu.edu>
>> >> Reply-To: Pentax-Discuss Mail List
<pdmlpdml.net>
>> >> To: Pentax-Discuss Mail List <pdmlpdml.net>
>> >> Subject: Re: Next move from Pentax: hints
about sensor for next
>> camera(s)
>> >> Date: Sun, 21 Oct 2007 11:47:22 -0400
(EDT)
>> >>
>> >> Adam Maas wrote:
>> >>
>> >>
>> >>> Not only an old sensor, but one with
extremely poor high ISO
>> >>>
>> >> performance
>> >>
>> >>> (it's the Sensor Kodak used in the
DCS14n, DCS/n and DCS/c).
>> >>>
>> >> Well they may have improved it since then:
The data sheet shows it's
>> >> been revised, January 2007 -- they've
nearly doubled the frame rate
>> >>
>> > >from 1.7 fps to 3 fps, for example.
>> >
>> >> Not that it has any bearing on Pentax,
AFAIK.
>> >>
>> >> BTW:
>> >> http://forums.dpreview.com/forums/read
.asp?forum=1036&message=25298198
>> >> 
>> >>
>> >>
>> >>
>> >> --
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>> >
>> >
>> >
>>
>>
>> --
>> Remember, it’s pillage then burn.
>>
>>
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