Manufacturer’s Description

Sigma's 17-50mm F2.8 EX DC OS HSM large-aperture standard zoom lens covers a focal length from 17mm wide angle and offers a large aperture of F2.8 throughout the entire zoom range, making it ideal for many types of photography especially portraiture and landscapes. The OS, Sigma's anti shake feature offers the use of shutter speeds approximately 4 stops slower than would otherwise be possible. The OS feature allows Sony and Pentax users the option of viewing a stabilized image in the viewfinder, a feature offered only by Sigma.

The Specs

Physical Specifications
Weight 1.24 lbs
More Info
URL http://www.sigma-photo.com
Optics
Filter Size Supported 77 mm
Min Focus Distance 11"
Min Focal Length 17 mm
Quick Glance
Lens Type Zoom
Max Aperture f/ 2.8 (Wide)
Max Focal Length 50 mm

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