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17-50mm F2.8 EX DC OS HSM

For use with smaller chip APS-c digital cameras only
Offers Sigma’s OS System (Optical Stabilization) allowing handheld photography even in low-light situation
HSM (Hyper-Sonic Motor) ensures a quiet & high-speed auto focus
FLD glass elements with performance equal to fluorite glass for compensate for color aberration
Ultra compact with overall length of just 3.6”
A lens hood, front & rear lens cap and carrying case are included with the lens.
  • Optical Stabilizer Function
  • Hyper-Sonic Motor
  • EX Lens
  • DC for Digital
#583 $980.00 MSRP
Choose mount:

SPECIFICATIONS

Lens Construction 17 Elements in 13 Groups
Angle of View 72.4-27.9
Number of Diaphragm Blades 7
Mininum Aperture f22
Minimum Focusing Distance 28 cm / 11 in
Filter Size (mm) 77
Maximum Magnifications 1:5
Dimensions
(Diameter x Length)
83.5x91.8 mm/3.3x3.6 in
Weight 565g / 19.9oz.
Corresponding Mounts
Sigma  OS
HSM
EX
DC
Nikon  OS
HSM
EX
DC
Canon  OS
HSM
EX
DC
Sony/Minolta  HSM
EX
DC
Pentax  HSM
EX
DC
OS - Optical Stabilizer Function
HSM - Hyper-Sonic Motor
EX - EX Lens
DC - DC for Digital

*Vignetting will occur if the lens is used with digital cameras with image sensors larger than APS-C size or 35mm SLR cameras.

* For Pentax mount, if the camera body does not support HSM, auto focus will not be available.

* OS function is not available for Sony and Pentax mounts.

*The appearance, specifications, and the like of the product may be subject to change for improvement.

Chart Guide

MTF CHART

MTF Chart
MTF Chart 2

LENS CONSTRUCTION

Lens Construction

Sigma’s new 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. HSM provides fast and quiet AF. Sigma’s own FLD glass elements, which have performance equal to fluorite along with two glass mold and one hybrid aspherical lens, provide excellent correction for all types of aberrations. The Super Multi-Layer coating reduces flare and ghosting. This lens boasts superior peripheral brightness and provides sharp, high contrast images even at the maximum apertures. With a minimum focusing distance of 11 inches throughout the entire zoom range and a magnification ratio of 1:5. When you need to stand ready for any photo opportunity you need a fast aperture so you can shoot in low existing light or at maximum range with a flash. This Sigma lens is perfect. With its compact size and light weight, it’s a necessary addition to your camera bag

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