For those unfamiliar, DSLR is an abbreviation for "Digital Single-Lens Reflex" — a term that actually delves into how DSLR cameras work. Let's try breaking it down for simplification ...

All zoom lenses in film cameras and digital single lens reflex (DSLR) cameras are optical zoom. Digital point-and-shoot cameras as well as consumer and prosumer video camcorders have optical zoom ...

The Sigma BF is an l-mount interchangeable lens digital camera with a unique industrial design and some interesting feature ...

Apple is adding new camera features, and changing the design of the camera bump for ... unless Apple has a new method for using a single-lens camera to capture that kind of footage.