A periscope camera lens is a lens assembly that uses prisms, mirrors, or a combination of them to redirect light before it reaches the camera sensor. In doing so, it magnifies the image more so than ...

Progressive lenses can feel like the “mystery box” of eyewear, we know they’re supposed to make life easier, but with so many options, how do you know which pair is actually right for you? If you’re ...

“Over half of the solar radiation energy, existing as infrared light, remains imperceptible to humans,” comments Dr. Yuqian Ma, a researcher at the University of Science and Technology of China. But, ...

What if your vision could be fine-tuned after cataract surgery? Learn more about how the Light Adjustable Lens (LAL) makes it ...

Scleral lenses are large contact lenses that rest on the sclera, the white part of the eye, rather than the cornea. The lenses contain saline, so the cornea stays moist, which is helpful for people ...

With so many cameras available, figuring out how all the specifications and options translate into your everyday use is complicated. For our first lesson in the Basics of Photography, we're going to ...

Documentary photographer Ian Howorth has travelled the globe and tested out countless cameras along the way. He shares his tips for choosing cameras, lenses and accessories for the perfect shot. Ian ...