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Sigma launches 18-250mm DC OS HSM lens
Sigma has announced the 18-250mm F3.5-6.3 DC OS HSM superzoom lens. Offering a 13.9x zoom range in a body only slightly longer than the company's current 18-200mm F3.5-6.3 OS lens, this new model features an optical design of 18 elements in 14 groups, including four Special Low Dispersion elements and three aspherical elements to minimise aberrations. Designed for use on cameras with APS-C / DX sensors, the lens is expected to be available from March, for Sigma, Nikon, Canon, Pentax and Sony mounts.
Sigma 18-250mm F3.5-6.3 DC OS HSM
January 14, 2009: The Sigma Corporation is pleased to announce the launch of new SIGMA 18-250mm F3.5-6.3 DC OS HSM on March 10th, 2009.
The SIGMA 18-250mm F3.5-6.3 DC OS HSM incorporates Sigma’s original anti-shake compensation function, with a 13.8 times zoom ratio. As opposed to having an anti-shake function in the camera body, this lens’s Hybrid Optical Stabilizer provides not only an anti-shake function for the camera body, but also compensates for image shaking in the view finder as the Optical Stabilizer is built in to the lens.
Incorporating four Special Low Dispersion glass elements and three aspherical lens elements provides excellent image quality throughout the entire zoom range.
This lens has a minimum focusing distance of 45cm (17.7 inches) at all focal lengths and a maximum magnification of 1: 3.4 reproduction ratio, making it ideal for close-up photography. An inner focusing system eliminates front lens rotation, making it suitable for use with circular polarizing filters and the supplied petal-type hood. Incorporating super multi layer coating reduce the ghost in the backlight photography.
|Maximum format size||APS-C / DX|
|Diagonal Angle of view||69.3º - 5.7º (1.7X APS-C)|
• 18 elements/14 groups
|Number of diaphragm blades||7|
|Minimum focus||45 cm|
|Maximum magnification||1 : 3.4|
|AF motor type||Hyper Sonic Motor|
|Filter thread||72 mm|
|Supplied accessories|| Front and rear caps
|Weight||630g (22.2 oz)|
|Dimensions||79mm diameter x 101mm length
(3.1 x 4 in)
|Lens Mount||Canon, Nikon, Pentax, Sigma, Sony|