A gray card gives your camera or the white balance tool in LR a single point of reference to adjust the RGB mix to a neutral balance. But flourescents are not continuous spectrum light and a single point reference is not enough to fully correct color crossovers.
The use of a Color Checker and Passport to create camera profiles based on the light recorded gives a many point reference model to bring all colors to meet the color reference standard through a much more powerful, versatile mechanism. I find it essential when working in diverse, multiple light source situations where color accuracy is important. A camera calibration profile can better handle such situations by modifying the entire raw conversion across all colors at the color interpolation part of the conversion process. Godfrey > On Apr 25, 2014, at 7:31 AM, Bruce Walker <[email protected]> wrote: > > To make sure you have a neutral colour to sample you can being a good > grey card along to shoot in the scene. The colour checker that Godfrey > mentioned is the extra fancy version of that that allows very fine > adjustments for the whole spectrum. Great for studio shooting (product > and fashion) but overkill for most needs. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
