Ready to replace the old lenses in your favorite frames? Get a fresh pair of quality replacement prescription lenses from these top online retailers. The prescription for your glasses is typically ...

Nikon’s Z-series lens line-up has never been healthier. If you’re shooting with one of the best Nikon cameras, you’ll want to pair it with the best glass you can buy. That’s exactly what ...

The best prescription sunglasses ensure you don't have to wear contact lenses under regular sunglasses or be subject to the sun without any eye protection. When creating a custom pair of ...

Thanks to the internet, it’s easy to browse, customize and (virtually) try on prescription glasses online without taking a trip to the optometrist’s office. After evaluating several options ...

Nikon has announced the Nikkor 28-135mm F4 PZ, a lens geared toward professional video shooters, and the company's first full-frame power zoom lens. It's the latest result of Nikon's increased focus ...

Zeiss is returning to making lenses for stills cameras, introducing the Otus ML line with new 50mm and 85mm F1.4 lenses for E, RF, and Z mounts. The lenses are manual focus only, but are focused on ...

Any serious photographer should have a 50mm lens in their kit bag. Also known as a 'standard' prime or a 'nifty fifty,' these lenses capture a perspective that's roughly equivalent to the field of ...

If you're searching for the best Leica M lens for your rangefinder, you have plenty of options to choose from. In this guide, I break down the entire lineup, highlighting the strengths of each lens ...

During a visit to Venture Global’s liquified natural gas plant in Port Sulphur, Gov. Jeff Landry and two members of President Trump’s cabinet told workers that securing U.S. energy dominance would ...

\(power \ of \ a \ lens \ (D) = \frac{1}{focal \ length \ (m)}\) A lens has a power of -3.33 dioptres. Calculate the focal length and state what type of lens it is.