Canon has been making cameras for professionals and hobbyists for a very long time, and the EF lens ... to its lenses, such as reduced size and weight. RF lenses come in two types.

It’s a similar story with the older Canon EF 16-35mm f/2.8L III USM lens ... This is thanks to the special type of ‘lead-screw’ STM employed here, which is usually reserved for bigger lenses where ...

The EOS R cameras use RF lenses, different from the EF lenses for its SLR system ... the lenses available for Canon R cameras, splitting them up by type of lens.

[Dan K] had just such a lens from Sigma, but wanted to get it working fully with a camera using the Canon EF lens fitting. Hacking ensued. The lens in question was a Sigma 15-30mm f/3.5-4.5 EX DG ...

The new EF 35mm f/2 IS USM is designed to offer outstanding flexibility – allowing photographers to capture an even broader range of scenes and subjects in wide-angle. The lens is Canon’s ...