A wildlife photographer says that a Canon RF 200-800mm lens snapped while packed in a bag but riding on a snowmobile ...

The AstrHori 6.5mm f/2 fisheye is a fully manual lens for APS-C Sony E, Fuji X, Nikon Z, Canon RF and Micro Four Thirds ...

We spent a full year testing nearly 40 X-mount lenses to figure out which ones make the most sense for Fujifilm shooters.

If you’re new to contact lenses, you may have questions about how to wear and care for them. It may not be as simple as slipping on a pair of eyeglasses. And it may take longer to get used to them.

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 ...

To see if $50 could bridge this gap, I recently bought an anamorphic lens for my smartphone, and took it for a spin in both London and Australia. I've used anamorphic lenses on actual video ...

The blobfish, described as the world's ugliest animal, has been voted fish of the year in New Zealand. The creature, which grows to about 12 inches (30cm) long, is known affectionately as Mr ...

Medications, trauma, and medical conditions can lead to abnormally small pupils (miosis). In miosis, the pupil is smaller than it should be, even in darkened conditions when it would typically expand ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. It has been a ...

I’ve been wearing contact lenses for over two decades; to find the best contact lenses for different vision needs, I tapped into my own experience and also relied on the expert insights of ...

Cataracts are a clouding of the lens inside your eye — a lens that is typically clear when we are born. "This results in trouble focusing light and seeing clearly," says Dr. Purnima Patel ...

Allergens are attracted to the surface of contact lenses, making your eyes a veritable magnet for irritants like pollen and ragweed. You may also be wondering, "Are allergy eye drops safe with ...