Canon EF 200-400mm f/4L IS USM Extender 1.4X has superb sharpness. At top, a 100 percent crop of the feral pigeon photo below, photographed at 560mm, 1/200 sec., f8, at ISO 800.
See CNET's review of the Canon EF 200-400mm f/4L IS USM Extender 1.4x lens.
July 8, 2013 4:43 PM PDT
Photo by: Stephen Shankland/CNET
| Caption by: Stephen Shankland
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