Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Go shopping for a smartphone today and one of the features you’ll ...

Shopping for a new lens for your mirrorless camera? You should really get a prime lens instead of a zoom lens — here’s why. Prime lenses, on the other hand, are relatively simple. There are no complex ...

Unwanted, excessive light in a photograph due to internal reflections and scattering of light caused by a camera lens with non-uniform optical characteristics. Zoom lenses, which contain several ...

Polarized lenses, like UV sunglasses, protect your eyes from sun damage. While they do offer UV (ultraviolet) protection from the sun's rays, they also have other added benefits. Why are polarized ...

Trifocal lenses correct three types of vision: close-up, intermediate, and distance. You may be more familiar with correction for distances far away and near, but you likely use your intermediate ...

Photochromic lenses are one of your options when selecting eyeglasses. These lenses get darker in color when exposed to the sun or other sources of UV light. Photochromic lenses are ideal for people ...

Around the world, more and more people are becoming nearsighted. Today’s younger generations have a much higher incidence of myopia than their parents do, according to public health data, and the rate ...