Every product is carefully selected by our editors. If you buy from a link, we may earn a commission. Learn more A camera lens filter is pretty much what you’d expect: it’s a physical piece of glass ...
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Beginner’s guide to different camera types

In our guide to camera types, we’re going back to basics. If choosing your first camera, it can be difficult to know where to ...
The Canon RF 85mm f/1.2L USM is a stunning lens capable of producing excellent image quality throughout its aperture range, ...
“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 ...
Dr. Colby answers the question: 'What Is Monovision And How Does It Work?' Aug. 24, 2009— -- Question: What is monovision, how does it work, and won't it be uncomfortable to wear two different ...