See how the new Sony 400mm f/2.8 GM lens tracks Roger Federer at the US Open

400mm f/2. 8 FE preorder at BHphoto, Adorama, Amazon, FocusCamera. In EU at Calumet. de and ParkCamera. Patrick Murphy-Racey is testing the new Sony 400mm f/2. 8 GM lens at the US Open. Here you see a HFR Video CLip test that shows how well the lens tracks on Rogerer Federer eyes: And here is Patrick Murphy-Racey in […] The post See how the new Sony 400mm f/2. sonyalpharumors.com »