The RF mount is wider than EF, though the older lenses ... requires expert manufacturing, and Canon has shown its mastery of the techniques with this 16mm lens. Its f/2.8 aperture and quiet ...

The best Canon EF lenses constitute ... Also, while the maximum aperture of the lens is f/4.5, it can only shoot at f/4.5 when locked at its widest setting of 10mm (16mm equivalent); the maximum ...

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 ...

[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 taller the column, the better the lens performance. CA (Chromatic Aberration) is measured with in-camera corrections switched off, as far as we can know anyway. Central results are very ...