Re: More on Canon Rebel XT noise at high ISO - 2 main new data points
- From: All Things Mopar <nunofyour@xxxxxxxx>
- Date: Mon, 02 Jan 2006 06:16:04 -0600
Today David Dyer-Bennet commented courteously on the subject
at hand
>> 1) /Both/ camera's, my "defective" one and his "working"
>> one showed the /same/ amount of noise at /all/ ISO from
>> 100 to 1600 on /all/ 3 of my PCs. Naturally, no noise is
>> readily apparent until ISO 400 on both cameras.
>
> The problem, then is that your expectations are not being
> met.
>
> What *are* you expecting at ISO 1600? Usable photos? Or
> crisp, clean, studio-looking photos? Are you expecting
> less noise than P&S cameras and a lot less noise than film
> that speed has grain? Or are you expecting a lot better
> than that? Because "a lot better than that" isn't
> available yet.
I "expected" to see little or no noise at ISO 400, some noise
at 800, and noise, but controllable noise on a properly
exposed image at ISO 1600. Where'd I get that? On
dpreview.com, from my fav camera store manager who's much more
knowedable about why a DSLR is a lower noise solution than
even an expensive EVF, from rec.photo.digital, and in this NG.
And, talking to friends with DSLRs and looking at the relative
difference in high ISO results between people posting car
pictures to alt.binaries.pictures.autos with pro-sumer EVFs
and DSLRs like the former Canon Rebel and a Nikon D70, both
with kit lenses and a big external flash.
I learned all this primarily from lurking and listening to
others asking the questions. So, I was surprised and dismayed
to see as much noise as I have. And, as my earlier post
stated, just a few days ago, my camera store manager
pronounced my camera defective, yet his supposedly working
version produced /identical/ results as mine, right there in
his store. Wasn't hard to do that - just shot several
represeentative series with both cameras on Programmed Auto
and all other camera parameters factory reset, and looking at
the 5.5 and 8 MP images at home. Clearly (pun intended), one
cannot see noise on an LCD.
OK?
Now, what did I expect at ISO 800 and 1600? I expected /some/
noise that I could fix reasonably quickly with PSP 9's EPS or
DCNR, once I had the exposure within +/- one f/stop. What I
saw, though, was a scene painted on multi-color beach sand,
and that is /not/ what I was led to believe would happen.
--
ATM, aka Jerry
"I disagree with what you say, but I will defend to the death
your right to say it." - Evelyn Beatrice Hall under the
pseudonym Stephen G. Tallentyre
.
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