On 3/29/2012 12:13 PM, Bruce Walker wrote:
On Thu, Mar 29, 2012 at 2:19 PM, Larry Colen<[email protected]> wrote:
On Mar 29, 2012, at 2:33 AM, Bruce Walker wrote:
Interesting, I found the noise characteristic of my K20 horrible. At least
in color. Lots of blue speckles. In black and white it just looked like
grainy film, but the color looked horrible.
We've chatted about this before, and I opined that perhaps your K20D
was out of spec. It's also possible that my K20D is magical. :-) I
doubt it though, although I think Walt believes it. ;-)
I thought that there might be something wrong with mine. I even talked
to Pentax about it because it performed a lot worse than I expected. I
also saw a lot of noise in well lit areas, such as sky. I was convinced
that no, mine wasn't broken.
As it turns out, I actually had two K20s, because when I sent mine back
in for repairs after it fell off the monopod, it came back not
completely working, and it was in for repairs for so long, they just
sent me another body.
But here's a thought: did you try hammering the Color NR slider in ACR
or Lr? I mean crank it to 100. Colour information can be safely
softened with almost no visible effect in the shot. You can also
compensate for that by separately sharpening the luminance
information.
It's been long enough since I got my K-x and stopped using the K20 for
low light work I don't remember everything that I did. That was also
before LR3. But I did try all sorts of different things in processing,
so I probably tried tweaking color noise all the way. I also did things
with HSL on the blue.
If I need to go back and reprocess those photos, I'm sure the newer
tools available to me will do wonders for cleaning up old files. That's
one reason I shoot RAW, rather than JPEG.
The K20 was indeed wonderful for studio work, or anything with plenty of
light.
--
Larry Colen [email protected] (from dos4est)
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