The Sigma 17-40mm f/1.8 DC is a majorly impressive zoom lens, and fills a huge gap especially for the Canon RF-mount ...

Focal length is the optical distance in millimeters between a camera lens and the sensor or film. It determines the height and width of the scene being captured, known as the "field of view." A prime ...

A lens focuses light onto the sensor of a digital camera and is critical to photography. To help you make an informed choice when buying or mounting an optic, we explain some of the most important ...

It's a telephoto prime with a built-in teleconverter, letting photographers switch between two focal lengths in seconds. Here ...

Picking what lens you will be mounting on your camera is one of the most important creative decisions you can make as a photographer. The focal length you choose will significantly affect how the ...

Sports photogs aren't compensating for something by swinging gigantic, monopod-mounted lenses; they need the focal length. Focusing and zooming on outfielders usually means glass far from the camera ...

Ryne was ostensibly a senior editor at Android Police, working at the site from 2017-2022. But really, he is just some verbose dude who digs on tech, loves Android, and hates anticompetitive practices ...

On Apple's iPhone 15 Pro models, users can switch between three preset camera focal lengths when shooting on the main camera. This article explains what they are and how to enable or disable them on ...