Lens darkness is measured in variable light transmission ... which doesn’t cover wear and tear. Prescription lenses carry a one-year scratch replacement policy; for its non-prescription lenses ...

Our expert, award-winning staff selects the products we cover ... get the lenses replaced and have them sent back. Depending on your prescription and the shipping, you can get replacement ...

My readers know that among my favorite things in the world, not just in my photography, are lenses. I like old and new, heavy and light, complex and simple, and on and on. There are almost no lenses ...

Efforts to cover up for Biden began as early as May 2019 as the primary race for the 2020 Democratic nomination was underway. Last week, former Politico reporter Marc Caputo shed light on a report ...

Learn more about laser eye surgery. During cataract surgery, a surgeon inserts an intraocular lens (IOL). Medicare may not cover all types of IOLs. However, it does pay for monofocal lenses.

Images, and the devices that capture them, are my focus. I've covered cameras at PCMag for the past 13 years, which has given me a front row seat for the DSLR to mirrorless transition, the ...

Our expert reviewers have selected the best lenses for astrophotography, with prices to suit a range of budgets, all suited to low light conditions. Read on and let us help you choose the right ...

A growing library of quality lenses backs Nikon's mirrorless Z camera system. We're here to break down what's available and recommend the best optics we've tested. Images, and the devices that ...

Our expert, award-winning staff selects the products we cover and rigorously researches and tests our top picks. If you buy through our links, we may get a commission. Executive Editor David ...

Want great views of February's full moon and the moon as its perigee? We've rounded up the best monoculars for stargazing, wildlife watching and more. When you purchase through links on our site ...

Abstract: Visible light communications (VLC ... This paper presents a novel decorrelation lens system for cost-effective and compact parallel VLC links. The system is designed to address the ...