On the first night out with my brand-new Celestron NexStar 8SE back in July 2015, I knew little about the relative sizes of astronomical objects. I was bowled over by my first view of Saturn — an ...

A Hasselblad co-designed 3.28x optical teleconverter lens for the OPPO Find X9 Pro smartphone, which extends the 70mm native ...

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 ...

Replay: Do we really need to keep using 35mm as our baseline for focal lengths, or is there a much better way? Why do we keep reading descriptions like ‘3.7 mm to 92.5 mm (equivalent to 28.8 mm to 720 ...

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 ...

A photographer's guide on the essential lenses that shape composition, depth, perspective, and other creative details across ...