Further readings for the Sigma 120-400mm F4.5-5.6 DG APO OS HSM Canon
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As the only lens reaching 400mm currently in the lineup, the Sony FE 100-400mm F4.5-5.6 GM OSS is an important addition for Sony full-frame E-mount cameras such as the action-oriented A9 and some A7 variants. It will also appeal to owners of such cropped-sensor APS-C models as the A6000, on which it offers nearly the equivalent field of view of a 200-600mm lens.
In the lead up to Photokina 2012, Canon announced the new Canon EOS 6D full-frame entry-point model within days of Nikon publicizing their most-affordable full-frame camera to date, the 24-Mpix D600. While the EOS 6D boasted some attention grabbing features including built-in WiFi and GPS and slightly undercut the Nikon on price, it couldn’t match its rival in one or two key areas, namely the less populated AF system and lower resolution sensor.
First seen at the Olympics in London in 2012, the Canon EF 200-400mm f/4 IS USM Extender 1.4x is a pro-oriented super-telephoto zoom with a built-in 1.4x tele-converter. Engaging this extender converts the zoom into a 280-560mm f/5.6 on a full frame camera, making this one of the most versatile lenses in the firm’s line up. Read on to see how well this $11,800 zoom performs with- and- without the 1.4x converter engaged while mounted to the Canon EOS 5D Mk III.