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Message:: [QUOTE="kanga, post: 878255, member: 9270"]Exposure time and lighting are key factors.You can easily control exposure time.But correct lighting is a REAL pain.And it changes from metal to metal, and surface to surface (proof, MS vs. Circ, color, etc.)I'm still trying to find the and I've been at it for several years.And it may still require a touch of "photoshopping" to get it right.The eye/brain combo see things differently than the camera. But one REALLY easy change you can make is your background.Use a non-reflective black or dark gray surface.You want as much of the light your camera collects to be from the coin, not the background.A white background tends to overpower the more subtle colors coming from the coin, particularly copper coins.I use an ordinary piece of black kindergarten construction paper.Watch out for light reflected from things in the area of your camera setup.Use a "white" light source. You need to get as close to the full color spectrum as reasonably possible (simulating sunlight). And a scanner is generally not good for imaging coins.You can't control:- focus- light intensity- direction of light- other things I haven't thought of[/QUOTE]