Sigma 30mm F2.8 EX DN
Sigma 30mm f/2.8 EX DN Lens Review
By: Jon Tarrant, What Digital Camera (Feb 19, 2013)
Clearly this is a lens of contradictions: it has a poor manual-focusing facility but it has a brisk and reliable AF system that records bitingly sharp images. It is also very well priced, which is an added bonus. There may not be much to play with on Sigma's 30mm DN (Digital Neo) format prime but that simply leaves the photographer undistracted and therefore better able to focus on the...