On 20 Oct 2005 at 10:38, Kenneth Waller wrote: > With a JPEG capture, I've always set density first, otherwise, on some > images, I'd wind up chasing my tail trying to get the colors "right". I > don't know of any reason to change with RAW.
RAW and JPG post processing work-flows aren't remotely comparable IMHO. JPEG images have been subjected to a gamma curve and contain only 8 bits per colour channel, the potential for adjustment is very limited. In processing RAW you are working on the image data before it has been subjected to a gamma curve or truncated to 8 bits per colour channel, in this linear wide latitude environment colour adjustment is easy and precise. Adjusting the colour in the linear space changes the colour channels relative to each other, in some cases one or more channels will clip (saturate or go completely black) in extreme areas of the image. Therefore it's advisable to make all but minor colour adjustments before the exposure (white point) and shadow (black point) adjustments are made in the RAW convertor. The colours will not change on screen or in the file with exposure/shadow/contrast adjustment if the channels aren't being clipped assuming of course that you are working on a properly colour/gamma calibrated monitor. Rob Studdert HURSTVILLE AUSTRALIA Tel +61-2-9554-4110 UTC(GMT) +10 Hours [EMAIL PROTECTED] http://members.ozemail.com.au/~distudio/publications/ Pentax user since 1986, PDMLer since 1998
