Candidates preparing for JEE Advanced 2026 can download the official syllabus PDF from jeeadv.ac.in, released by IIT Roorkee.

The emotional weight behind eye surgery also comes from the stakes involved. People worry about protecting their vision, and ...

The lenses use concentric rings to refocus light, potentially preventing severe eye issues like cataracts and retinal detachment.

A new type of lens approved by the FDA promises to slow nearsightedness in children. These specialized glasses, available in ...

R esearchers have calculated one of the most precise estimates for the expansion rate of the universe today, and it turns out ...

Scientists are testing a novel way to measure cosmic expansion using time delays in gravitationally lensed quasars. Their ...

Fujifilm was one of the first camera makers to embrace mirrorless systems and has one of the most well-established lens libraries. These are the best we've tested. Images, and the devices that capture ...

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 ...

Leica, Panasonic, and Sigma full-frame mirrorless cameras share a common lens system, the L-mount. It's still evolving, but these are the best L-mount lenses we've tested so far. Images, and the ...

I picked up my copy of the Canon RF 35mm f/1.8 IS STM Macro lens back in June last year – and to say it’s blown me away would be an understatement. What's not to love? It’s a versatile optic with a ...

Lenses from some third-party brands do not seem to work on the Sony A7 V. What's going on with Sony's new camera?

AS soon as H. Busch had established the analogy between axially symmetrical electromagnetic fields and optical lenses, a question very naturally suggested itself: “Can we make electron lenses as ...