Do you have color management turned on in both Windows and in you editing software? If you do I suggest you turn it of in Windows and see if that helps. It took me a long time to figure this out. Windows CMS seems to be on by default. ----- Original Message ----- From: "Gerald Cermak" <[EMAIL PROTECTED]> > I've been trying to refine my digital editing skills over the last months or > so, and while I've made some improvements, I still don't quite understand a > few things. > > My current concern is why when I save an image converted to sRGB space (in > Windows), it doesn't look right unless I first change the gamma from 2.2 to > 1.5. As I understand things, the default color space on Windows is sRGB > with a monitor gamma of 2.2. When in my editor, this all works out > beautifully for nice images using profiles for my monitor, a Chrome 2000 D65 > workspace color, etc. I have found I can retain most of the original Chrome > working space colors by saving my jpegs to the sRGB IEC61966-2.1 color > space. But leaving the gamma at 2.2 results in a image in IE5 (or other > non-color space corrected viewing program) that is way too dark compared to > what I edited. Through experimentation, the best match is made by first > converting to a gamma of 1.5, then saving. I've tried gammas ranging from > 1.2 to 1.8, and 1.5 is the best match. > > I've calibrated my monitor (a Viewsonic PS790) as best as possible at 6500K > using on screen test patterns for brightness and contrast, and this seems to > give the best viewing of other images on the web. I have the Viewsonic ICM > files for my monitor loaded, so I think everything on my system is setup > properly. > > This gamma change problem exists in both PhotoShop 5.0 LE without color > space profiles, and Picture Windows Pro 3.0 where color space profiles are > enabled. > > Does anyone know why I have to save my images at a gamma of 1.5, when > Windows is supposed to have a gamma of 2.2? - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
