Canon has just released a fast ultra-telephoto zoom for its RF-mount full-frame cameras. The company says that the RF100-300mm F2.8 L IS USM lens exists in response to requests from photojournalists, ...

Claiming to be the best of both worlds as it's been optimized for both photo and video, this new Canon RF 85mm f/1.4 L VCM is a fast, short-telephoto prime lens that features a function-first build, ...

Developing an optical geometric lens system in a conventional way involves substantial effort from designers to devise and assess the lens specifications. An expeditious and effortless acquisition of ...

If you have ever played around with lenses, you’ll know that a convex lens can focus an image onto a target. It can be as simple as focusing the sun with a magnifying glass to burn a hole in a piece ...