American Photo's editors choose the top ten camera lenses from 2006.
The usual macro focal lengths (50mm, 60mm, 100mm, and 105mm in 35mm) don't cut it for many photographers. They prefer a longer lens for two reasons: It provides more working distance between the camera and a small subject; and its narrower angle of view gives you a smoother, less mottled background to set off your subject. Though this new Sigma macro delivers its nominal focal length on a 35mm or full-frame D-SLR, it produces the equivalent of 225mm or 240mm on a Nikon or Canon D-SLR with an APS-C-sized image sensor. About $600.
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