Red Digital Cinema is bringing Nikon's Z-mount to its Komodo-X and V-Raptor X cinema cameras. Originally, the cameras ...

Rheumatoid factor (RF) levels above a normal range can indicate autoimmune conditions, such as rheumatoid arthritis (RA). Rheumatoid factor (RF) is an immune system protein that attacks healthy cells.

Do you use a Canon EOS R mirrorless camera? From wide-angle to telephoto, these are the best lenses we've tested for the platform. Images, and the devices that capture them, are my focus. I've ...

The EOS R cameras use RF lenses, different from the EF lenses for its SLR system. Adapters are there to make it a little easier to swap your trusty EOS 5D Mark IV for a new EOS R5. But not ...

In this section you'll find photographic features that explore holidays and photography courses, details about members meetings, trials and tribulations of installing new software along with ...

With the advent of this RF 16-28mm, there are no less than five full-frame options plus an RF-S wide-angle zoom for APS-C format cameras, and that’s not counting all of the back-catalog EF mount zooms ...

It's an ultra-wide zoom lens designed for full-frame cameras like the Canon EOS R8 Its design is practically identical to that of the RF 28-70mm F2.8 IS STM It costs $1,149 / £1,249 / AU$1,879 ...

To accelerate particles, the accelerators are fitted with metallic chambers containing an electromagnetic field known as radiofrequency (RF) cavities. Charged particles injected into this field ...

John Riley is putting the Canon RF 85mm f/1.2L USM lens to the test ... The Nikon Nikkor Z 135mm f/1.8S Plena is an all-metal constructed lens that is straightforward to use.