Single lens reflex color image

Quick answer：

A single lens reflex (SLR) color image refers to a photograph taken with a single lens reflex camera that captures color information. SLR cameras use a mirror system to reflect the image from the lens up to the viewfinder, allowing the photographer to see the scene as it will appear in the final photo. Color images are created by recording the intensity of red, green, and blue light, which are combined during the printing or digital processing to produce a full-color image.