I'd like to run DOF (Depth-of-Field) on this ring image, but I can't stand Bryce's garbage DOF "premium" setting. I need to use the grayscale, 8-bit distance map in Photoshop as a quantifier for blurring. Meaning, I need the whites to be blurrier, and the blacks to be more focused, when applied to the original image. I posted this in the Photoshop forum, and looked everywhere, but alas... Perhaps you wonderful regulars can help me? Here's the initial image (although shrunken and dithered...)