[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 Canon RF 16-28mm f/2.8 IS STM is a “never before seen” lens in either of the manufacturer's EF or RF ranges. The new optic follows on from 2024’s Canon RF 28-70mm f/2.8 IS STM, which was the ...

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 ...

In summary, the Canon EF 400mm f/2.8L IS III USM lens is a superb performer. You can view additional images in the Equipment Database, where you can add your own review, photos and product ratings.

Canon has been making cameras for professionals and hobbyists for a very long time, and the EF lens mount that it introduced in 1987 saw well over 100 million lenses produced for it. That all ...

But when [Loudifier] needed an extension tube to do extreme close-ups with a wide-angle lens on a Canon EF-M camera, it needed to be small…really small. The final 3D printed extension provides ...