I do that with all body lens combos. C1 does good analyses. The target is very evenly lit. I checked that in C1 too. The spot readouts showed almost identical values all over the target. Metamerism should not be an issue with a ColorChecker, I think. Still, I would like to know what causes this.
nino On 8/5/2011 10:09 AM, Nikolay Pokhilchenko wrote:
05.08.2011, 04:18 nino loss wrote:
I still get a peak error of 18.381637 and an average of 7.896481 !
IMHO, It's OK for camera profiling. This number depends of the
uniformity of illumination, of lens and sensor uniformity and
metamerism phenomenon.
You can check uniformity of target illumination and lenses by shooting
clean white paper sheet in place of target.
