DSLR is the acronym for Digital Single-Lens Reflex camera. DSLR cameras use a series of mirrors to display light that comes throught the camera's lens into the eye of the photographer through a viewfinder in the back of the camera. DSLR cameras are popular amongst photographers for the ability to use interchangeable lenses for various photographic needs. The most popular manufacturers of DSLR cameras are Canon and Nikon though many traditionally electronic manufacturers have entered the market like Samsung and Sony.

Image of th Canon EOS Digital Rebel T1i, one of the most popular DSLR cameras on the market today (Image from Canon Website.)