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June 22, 2007

Sigma Releases Details on 18-200 OS

Sigma USA has released details on the much-anticipated 18-200 F3.5-6.3 DC OS (Optical Stabilizer), a direct competitor to the Nikon 18-200 DX VR.

As expected, many of the specifications come close to the Nikkor:

Diameter x Length - 3.1" by 3.9" (79x100 mm)
Weight - 21.5 oz (610 g)
Minimum focusing distance - 17.7" (45 cm)
Lens construction - 15 elements/3 groups (release description indicates 1 SLD/3ASPH elements)
Diagphragm blades - 7
Maximum magnification ratio - 1:3.9
Minimum aperture - F22
Filter attachment size: 72mm

With the exception of the effective maximum aperture at 200mm, and no Silent-Wave engine equivalent, this optic is shaping up to be a good alternative for members looking for a all-convenience lens. The MRSP is USD820, a bit steep, but the street price will likely be lower. Unfortunately, the release indicates the Nikon and Sigma mounts are coming soon, with only the Canon mount available now.

Posted by covey22 at June 22, 2007 7:11 PM