Four lenses and a Spatial Light Modulator allow each pixel to have a different focal length in research from Carnegie Mellon ...

SEATTLE—Primes are single focal length lenses, which can be designed with a relatively few optical elements and thus are capable of transmitting a lot of light to the film or digital camera sensor.

November 9, 2017 Add as a preferred source on Google Add as a preferred source on Google When it comes to purchasing a lens for your digital camera, the sheer number of options, specifications, ...

Whether you want to shoot a tennis match or take a close-up of a butterfly, you will need the right lens for the job. The primary differentiators among lenses are focal length (the distance at which ...

A good 35mm prime lens has a special place in my heart. It’s a versatile choice for a variety of shooters and sceneriors, gives you a slightly wider field of view than a nifty-fifty, and has been the ...