A reliable flashlight should stay bright over time, be durable, and have a long battery life. We field-tested 10 flashlights ...

Tank trailer manufacturer adds attention-grabbing ‘glow heads’ to growing list of custom offerings, which includes TALK lighting, molded aero skirts, and side underride ...

Nikon has announced the Nikkor 28-135mm F4 PZ, a lens geared toward professional video shooters, and the company's first full ...

Artificial blue light from devices and screens is not kind on your eyes or your overall health. Here are the best blue light ...

Researchers have developed a novel experimental platform to measure the electric fields of light trapped between two mirrors ...

Lapo Srl, an Italy-based eyewear lens manufacturer and specialty and sustainable material provider Trinseo, Wayne, ...

Scientists have found a way to achieve negative refraction—where light bends the "wrong" way—using carefully arranged atomic ...

CAPE CANAVERAL, Fla. -- Europe’s Euclid space telescope has detected a rare halo of bright light around a nearby galaxy, astronomers reported Monday. The halo, known as an Einstein ring, encircles a ...

Nasha is a Managing Editor for CNET, overseeing our sleep and wellness verticals. She is a nutrition, mental health, fitness and sleep science enthusiast. Her passion for mindful and holistic ...

Lens darkness is measured in variable light transmission, or VLT. A higher VLT means less light for bright days, and a lower number means more light for darker days. By tint, I mean base tint ...

Nasha is a Managing Editor for CNET, overseeing our sleep and wellness verticals. She is a nutrition, mental health, fitness and sleep science enthusiast. Her passion for mindful and holistic ...

Our lens reviews offer detailed information on sharpness, distortion, bokeh, and all the other important factors that go into making a lens great. Our reviews give you all the information you need ...