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Sigma 18-250mm f3.5-6.3 DC OS HSM

January 15, 2009 | Gadgets & Reviews | 2,749 views

Sigma 18-250mm f3.5-6.3 DC OS HSM

Sigma announces another lens in their line-up, the Sigma 18-250mm F3.5-6.3 DC OS HSM with a 13.8 times zoom ratio. It incorporates Sigma’s original anti-shake compensation function. The lens incorporates four SLD (Special Low Dispersion) glass elements and three aspherical lens elements that provides excellent image quality.

The Sigma 18-250 has a minimum focusing distance of 45cm, ideal for close-up photography. Front lens rotation is eliminated with its inner focusing system. Filter thread is 72mm in diameter. The lens is supplied with a petal-type hood and a soft lens case.

Sigma 18-250mm is expected to be launched in March 10, 2009.

Lens Specifications:

Focal length	18-250mm
Maximum aperture	f 3.5
Minimum aperture	f 22
Format	APS-C / DX
Auto Focus	Hypersonic Motor (HSM)
Angle of view	69.3º – 5.7º
Lens Construction	18 elements/14 groups
Diaphragm blades	7
Minimum focus	17.7 inches / 45 cm
Magnification	1 : 3.4
Filter Diameter	72 mm
Dimensions (diameter x length)	3.1 in x 4 in / 79mm x 101mm
Weight	630g / 22.2 oz
Mount	Canon, Nikon, Pentax, Sigma, Sony