Originally posted by maxfield_photo The chart can be used by itself (i.e. get your image into your PP software of choice and make it your image of the chart look as much like the chart as possible), or it can be used with included software to create an ICC profile of your lens/camera combo. Then in post you can apply that color profile to your images and they map perfectly to your working color space. Pentax sensors in particular tend to be optimized for skintones, but do so at the expense of saturation in the blue channel. In otherwords, people tend to look good while skyies tend to look blah. The color checker fixes that. It really helps with cheaper lenses that tend to render colors rather dully, with better lenses there is less of an improvement, but it's still fairly noticeable, even with my FA 77. The color checker passport also includes several white balance targets for portraits and landscapes, and several patches to indicate when changes you make in one images may cause certain colors to blow out when those same changes are synced to other images.
Ah... Thank you on that explanation... *reads slowly*
Hehe! Sounds more complicated than ever for me..