When you hear the term “extension tube”, you probably think of something fairly long, right? But when [Loudifier] needed an extension tube to do extreme close-ups with a wide-angle lens on a ...

The lens in question was a Sigma 15-30mm f/3.5-4.5 EX DG, built to work with a Sigma camera using the SA mount. As it turns out, the SA mount is actually based on the Canon EF mount, using the ...

The best EF-mount zoom lenses mean that you and your Canon DSLR are prepared for any eventuality. Allowing you to cover a ...

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 ...