Jim, I do all my processing in Adobe RGB (1998) color space, but convert to sRGB before posting to the web. If you want your image to look the same online as it did when you processed it, you should upload the final version in sRGB. Many good image processors use Lab color, but I have not tried that yet. However, even those folks convert to sRGB before posting to the web. Adobe color space has a relatively large and well-balanced color gamut and is ideal for working with images without losing subtle colors. It is great for use during the image processing workflow and can then be converted to the appropriate color space for use in a range of devices. The sRGB color space has a much narrower gamut of colors, but is good for matching colors on devices like monitors and the internet. Take away message... process in Adobe RGB and then convert to sRGB! Cheers, Tyler _____________________________________________ -----Original Message----- From: utah-astronomy-bounces+tylerallred=earthlink.net@mailman.xmission.com [mailto:utah-astronomy-bounces+tylerallred=earthlink.net@mailman.xmission.co m] On Behalf Of Jim Gibson Sent: Saturday, February 14, 2009 5:05 AM To: Utah Astronomy Subject: Re: [Utah-astronomy] Spiral Galaxy NGC-2683 Patrick, Outstanding pictures. After I got through in admiring NGC 2683’s structure and mottling I got caught up in counting all the background galaxies.   I have seen Tyler, Patrick, and Bob’s photos using the sRGB color space. Is that better than the Adobe 1998 color space? I guess I will switch mine.   Jim       --- On Sat, 2/14/09, Patrick Wiggins <paw@wirelessbeehive.com> wrote: From: Patrick Wiggins <paw@wirelessbeehive.com> Subject: [Utah-astronomy] Spiral Galaxy NGC-2683 To: "utah astronomy listserve utah astronomy" <utah-astronomy@mailman.xmission.com> Date: Saturday, February 14, 2009, 1:42 AM Another example of what can be done when ok data are assembled by a master. http://www.slas.us/gallery2/main.php?g2_itemId=1010 This will probably be the last image based on my data for at least a little while. I finally got fed up enough with my primary mirror moving during exposures that I broke down and ordered a locking collar that's supposed to arrive in the next few days. Installing it will entail taking the scope apart so the OTA is on my library floor now, ready to be operated on when the part arrives. patrick _______________________________________________ Utah-Astronomy mailing list Utah-Astronomy@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Visit the Photo Gallery: http://gallery.utahastronomy.com Visit the Wiki: http://www.utahastronomy.com _______________________________________________ Utah-Astronomy mailing list Utah-Astronomy@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Visit the Photo Gallery: http://gallery.utahastronomy.com Visit the Wiki: http://www.utahastronomy.com