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 ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Since we began testing cameras more than two decades ago, TechRadar has reviewed every ...

The Canon RF 200-800mm f/6.3-9 IS USM is the reigning superzoom champion in terms of focal range and is impressively lightweight and compact for its reach. However, its mediocre maximum aperture does ...

The RF 200-800mm F/6.3-9 IS USM takes long telephoto photography even further with this lightweight, competitively priced lens. Will Cheung had the chance to get hands on this eagerly anticipated ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. The lens in the patent doesn't exist yet, but Canon also has the RF 28mm f/2.8, a compact ...

Compact lenses can help create a mirrorless camera system that’s nearly pocketable – and a recently published patent suggests Canon is toying with the idea of crafting some compact f/8 optics. A ...

Table of Contents Best DSLR camera deals Best action camera deals Best mirrorless camera deals Best point-and-shoot camera deals There’s a lot of photography you can manage with a camera phone ...

At Mobile World Congress 2025, Xiaomi showcased a Modular Optical System (MOS) that magnetically attaches a lens to a custom Xiaomi 15. It's like a Moto Mod, but with a full-fledged, working ...

The interchangeable-lens concept is currently a prototype Realme is offering a 73mm portrait and a 234mm telephoto lens The company also previewed a voice-based image editing feature ...

Realme's main focus at this year's Mobile World Congress is to launch its 14 Pro series in Europe, but the company did a little side quest too. Meet the Realme interchangeable lens concept - a ...

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

The annual mobile trade show in Barcelona kicks off today, but just ahead of the event Xiaomi has shown off a prototype camera lens. I am, apparently, one of only two media members to get hands on ...