I’ve been using Photomatix quite a bit for landscapes and it is great. Lots I don’t know about it, but the worst has be handling RAW files. There is an entry “Color Primaries Based On” which http://www.hdrsoft.com/support/help_files/raws.htm explains just tells Photomatix, for RAW files, what is the color space. I gather RAW doesn’t include that color space information.
As an aside, on a Canon Digital Rebel XT (350D), you have to manually set it to Adobe RGB. It defaults to sRGB which is pretty crappy.
Tags: Color Space, Digital Rebel Xt, Landscapes, Primaries, Raw Files, Space Information, Srgb