Take a peek at the RGB values of those multiple white, gray and black patches around the perimeter of the SG target and you will get an idea of their value... Best / Roger -----Original Message----- From: colorsync-users-bounces+graxx=videotron.ca@lists.apple.com [mailto:colorsync-users-bounces+graxx=videotron.ca@lists.apple.com] On Behalf Of Alex Jamison Sent: Saturday, May 25, 2013 1:37 PM To: colorsync-users@lists.apple.com Subject: ColorChecker Digital SG question Hello, Does anyone know the reason for the multiple white, gray and black patches around the perimeter of the SG target? Are they necessary for successful profiling or are they redundant? Does profiling software make use of them to equalize color or illumination across the field perhaps? Thank you, Alex Jamison _______________________________________________ Do not post admin requests to the list. They will be ignored. Colorsync-users mailing list (Colorsync-users@lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/colorsync-users/graxx%40videotron.ca This email sent to graxx@videotron.ca