Here is a lens from Sigma that fits into the medium to long telephoto range and is a step up from the average 70-300mm models. It sports a constant aperture of f/4 and Sigma’s HSM autofocus motor. We ...

Why you should always fit a lens hood – and how to make your own, when necessary. Without a lens hood, the strong side lighting in this scene would have reached the front element of the lens and ...

The Sigma 45mm f/2.8 DG DN Contemporary lens is a very nice bit of gear; robustly built and compact and light enough to be easy to carry. The metal barrel and lens hood have a ‘quality’ look and feel ...