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Ilse Jurriën : March 3th 2009 - 02:00 CET
Sigma 50-200mm

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SigmaSigma 50-200mm F4-5.6 DC OS HSM lens : Sigma announces the new Sigma 50-200mm F4-5.6 DC OS HSM. This compact high-performance telephoto zoom lens incorporates Sigma’s own Optical Stabilizer function. The Sigma 50-200mm lens incorporates SLD (Special Low Dispersion) glass in the front lens group and is equipped with an inner focusing system to provide high image quality throughout the entire zoom range. The incorporation of HSM (Hyper Sonic Motor) ensures quiet and high-speed auto focus. The OS (Optical Stabilizer) function effectively eliminates the effects of camera shake so subjects can be easily and clearly seen in the viewfinder as well as in the image. It allows the use of shutter speeds approximately 4 stops slower than normal for steady, handheld photography.
Sigma 50-200mm lens

Sigma 50-200mm telephoto zoom lens
For Sony and Pentax mounts he built-in OS System operates in conjunction with a camera body equipped with an anti-shake function and can be used as an alternative with cameras having built-in image stabilization. The Super Multi-Layer Coating reduces flare and ghosting and provides high contrast images throughout the entire zoom range. The Sigma 50-200mm lens has a minimum focusing distance of 110cm (43.3 inches) throughout the entire zoom range and a maximum magnification ratio is 1:4.5. An inner focusing system eliminates front lens rotation, making it suitable for use with circular polarizing filters.

Sigma 50-200mm lens specifications
• Lens construction : 14 elements, 10 groups
• Angle of view : 27.9°-7.1°
• Number of blades : 8pcs
• Minimum Aperture : F22
• Minimum Focusing Distance : 110cm / 43.3in
• Maximum Magnification : 1:4.5
• Filter Size : Φ 55mm
• Lens Hood : Bayonet-type hood
• Dimensions : Φ 74.4mm × 101.9mm / 2.9" × 4"
• Weight : TBD




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