Ryan Mercer

Ryan Mercer is a camera sensor specialist and imaging technology researcher with a deep focus on CMOS and next-generation sensor design. He translates complex technical concepts into clear, practical insights, helping readers understand how sensor performance impacts image quality, dynamic range, and low-light capabilities.

Back-Illuminated (BSI) Sensors vs. Standard CMOS: What’s the Difference?

back illuminated sensor

I often get asked why modern cameras capture better low-light images than older designs. I explain this from my own experience with phone and compact cameras. The shift to a back illuminated sensor design changed how light reaches the photosites and made a real difference in everyday photography. What I learned testing sensor technology in …