You might try monitoring the image using the individual R, G & B channels in
the histogram. I've run across images that were within the white/dark points
on the histogram yet the reds were somwhat blown out. Not lens specific as
far as I can tell - this with a K20D.
Kenneth Waller
http://www.pentaxphotogallery.com/kennethwaller
----- Original Message -----
From: "Igor Roshchin" <[email protected]>
Subject: Does 31/1.8 Ltd produce extra red?
I've been using Pentax 31/1.8 Ltd lens for the past few months, and I
noticed that it tends to produce lots of red. I mean that the red
channel frequently appears to be somewhat over-saturated.
In many of those cases I can fix that in LR by dialing down the saturation
of the red channel under HSL menu in the "Develop" module (LR 3.6)
to about -10 -- -20.
This is especially noticeable in extremely red lips and/or red faces
overall.
Does anybody else observe this trend?
I wonder if it might be
1. the specifics of my scenes (relatively low-light, mostly fluorescent
lights)
2. the specifics of my lens.
3. specifics of the LR 3.x process [that is taken care of in 5.x]
(I don't see this with other lenses)
4. something else...
Igor
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