The Viltrox AF 40mm F2.5 is one of the lightest lenses you can get for a mirrorless camera, though at 2.3 by 2.6 inches (HD), ...

Once the cornea surface is determined ... with the crystalline lens acting as an aspheric compensator for providing a (partial) correction of corneal spherical aberration and avoiding major ...

Lens elements include Dual Aspherical, Aspherical ED and Super-High Refractive ... Its front panel is dominated by the lens, which is big and bright and covers almost half of the surface area. The ...

The Panasonic 15mm f/1.7 Leica Summilux DG ASPH is a compact, lightweight prime lens that’s perfect for nature and night sky ...

Google Lens has been around for some time now, so it's easy to forget just how useful this tool can be. From identifying a strange plant in your yard to translating a street sign, you can learn ...

Affordable but with great build quality – there is a lot to like about these full-frame anamorphic lenses from Blazar ...

Cataract surgery is one of the oldest surgical procedures known, first documented in the fifth century BC. [12] In ancient times, cataracts were treated with a technique called couching, which ...

We're now all the way up to the 11th version of the Microsoft Surface Pro: The tablet-laptop hybrid made its first appearance in 2013, and we've seen plenty of tweaks and changes to the device ...

Microsft’s Surface laptops are also pretty light and are a good alternative if you don’t want to go with either Dell or Apple. In fact, you can get everything from a budget-oriented option to ...

7.5MM F2.8 fisheye mirrorless camera lens, lens structure of 8 groups and 9PCS. Upgraded product, optimizes the light way for clearer imaging. Z mount, suitable for Nikon Z6 Z7 Z50 and other ...

It’s impossible for us to recommend the best Sony lens for everyone, simply because there are so many to choose between. From wide-angle primes to super-telephoto zooms, we’ve tested a whole ...