“In optics, there was a problem,” says Amit Agrawal, a physicist at the National Institute of Standards and Technology in Gaithersburg, Md. If you wanted to focus a single lens to two different points ...

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Fixed-focus lenses have been around since instant film cameras — and have stuck around in the digital world to keep shots from GoPros and other action cameras sharp without hunting for focus. But one ...

Modern DSLRs can shoot some pretty impressive video footage, but unfortunately their small and often fiddly focus rings aren't quite cut out for creating cinematic masterpieces which require smooth ...

[Guy] wrote in to share this motorized camera lens project he recently finished. He really loved the zoom lens, but since both zoom and focus are manually controlled, he sometimes had trouble getting ...

This article is part of our roundup of iPhone camera lenses. I like bees. Very much. And macro photos of bees? They send me over the (magnified) moon. Photos taken with so-called macro lenses let you ...

The first PL-E adapter to bring autofocus to manual cinema lenses Shenzhen, China - January 15th, 2026 - Viltrox is ...