Read our Canon EF 17-35mm f/2.8L USM field test by professional ... which can be used to cycle through three modes: focal length, a camera shake meter, and the current focus distance complete ...

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 ...

That all changed in 2018 when Canon released the first EOS R camera, a mirrorless interchangeable lens camera that had a new lens mount, known as RF. The RF mount is wider than EF, though the ...

The 16mm F1.4 lens is the largest prime lens of the bunch, with the widest perspective, equivalent to 24mm. It measures 90.3mm in length and weighs 14.6oz / 415g, while its perspective is similar to ...

and a more basic 35mm f/1.4 full-frame lens. Panasonic's Lumix cameras use the L-mount system. Since Leica and Sigma also use the L-mount, it means that Panasonic camera owners have additional ...

[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 ...