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Sigma APO 50-150mm F2.8 EX DC HSM lens
Ilse Jurriën : August 11th 2006 - 00:00 CET
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 Sigma APO 50-150mm F2.8 EX DC HSM lens : The Sigma Corporation is pleased to announce the launch of the new Sigma APO 50-150mm F2.8 EX DC HSM lens. Specially designed for digital SLR cameras with an APS-C size image sensor, this large aperture F2.8 lens has a compact and lightweight construction of 76.3mm (3.0”) in diameter, 132.6mm (5.2”) in length and weighing just 780g (27.5oz) (Nikon Mount). The incorporation of the very latest optical technology gives optimum lens performance providing excellent correction for flare, ghosting and all types of aberrations. High image quality is assured throughout the entire zoom range. Four SLD（Special Low Dispersion）glass elements are used for utmost correction of chromatic aberrations.
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 Sigma 50-150mm f2.8 EX DC HSM
The HSM (Hyper Sonic Motor) system ensures quiet and high-speed auto focusing with full time manual focus override. The addition of the Sigma 1.4x EX DG APO or 2x EX DG APO Tele Converters (optional extras) produces a 70-210mm F4 AF tele-zoom lens and a 100-300mm F5.6 AF ultra-telephoto zoom lens respectively. The compact, lightweight, large aperture Sigma APO 50-150mm telephoto zoom lens is designed exclusively for digital SLR cameras and incorporates the very latest optical technology.
Sigma APO 50-150mm EX DC HSM features
• Compact and lightweight
• Incorporation of the very latest optical technology
• High image quality is assured throughout the entire zoom range
• Four SLD glass elements are used for utmost correction of chromatic aberrations
• Equipped with HSM (Hyper Sonic Motor) with full-time manual focus override
• Compatible with Sigma 1.4x EX DG and 2x EX DG APO Tele-Converters
Sigma APO 50-150mm F2.8 EX DC HSM specifications
• Focal length : 50-150mm
• Minimum aperture: f22
• Lens construction: 18 elements in 14 groups
• Angle of view: 27.9° - 9.5°
• Number of diaphragm blades: 9pcs
• Minimum focusing distance: 100cm (39.4")
• Maximum magnification: 1:5.3
• Filter size: 67 mm
• Lens hood: Bayonet type
• Dimensions: Diameter 76.3 mm (3.0”) x length 135.1 mm (5.3”)
• Weight: 770g / 27.2oz
About Sigma
After nearly 40 years of pioneering new and better ways to capture and portray the ordinary - and extraordinary - Sigma is still creating new avenues of expression with innovative designs and enhancements in zoom and non-zoom lenses and single lens reflex cameras. As one of the first manufacturers to successfully introduce the interchangeable lens, Sigma's well-earned reputation for originality, innovation and leadership is your guarantee of the world's most advanced line of photographic products. Products you and millions of photographers worldwide turn to when quality, reliability and professional results count most.
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