On May 8, 2013, at 3:38 PM, Ben Goren wrote:
On May 8, 2013, at 12:00 PM, Iliah Borg <iliah.i.borg@gmail.com> wrote:
On May 8, 2013, at 2:43 PM, Andrew Rodney wrote:
your camera may not behave just like the sample used by Adobe to build the DNG profile
How much the sensor response should differ to make sample variation visible?
An interesting project to gauge that would be for somebody to collect raw files of images of ColorCheckers shot outdoors at noon on a sunny day.
Lenses and light can make a great difference. Stray light in the camera, too. I usually profile from several cameras of the same make and model, using a monochromator and no lens. For older CCD cameras sample variation is indeed a factor. For Canon, Nikon, Olympus and Sony cameras made during last 4 years the sample variation is small and hardly can make a huge difference in profiles. I would be glad to provide hosting and systemize ColorChecker / ColorChecker SG / other targets raw shots. -- Best regards, Iliah Borg