I work from photos that I have in sheet protectors. A problem with one of my eyes makes clear vision a challenge already. When I mix a color and then paint a stroke on the sheet protector so I can compare with my source, the wetness of the paint and the glare from the sheet protector makes it very hard to compare the source color with the one I mixed. Maybe Mark's "laminated photo" actually means taking the photo somewhere to get it laminated? Does that make for less glare than my sheet protectors?