slang Someone who is particularly or overly critical of or sensitive to the resolution, clarity, and quality of digital images or photographs. When I started getting into digital photography, I'll admit that I became quite a pixel peeper for a while. Later on though, I became less obsessive over technical quality and learned to appreciate well-composed photographs in their own right.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.