DxOMark has recently tested the Sigma 120-300mmm DG OS HSM, and as part of our ongoing collaboration we’ve added the test data to our lens widget. We’ve also added a range of Nikon telephoto lenses including the AF-S Nikkor 200-400mm f/4G ED VR, which can be compared with each other and their Canon counterparts. Click through for more details and analysis.
News: Digital Photography Review (dpreview.com)