Sigma 17-50mm F2.8 EX DC OS For Canon



Manufacturer description: The Sigma 17-50mm F2.8 EX DC OS HSM is a useful large-aperture standard zoom lens designed exclusively for APS-C format digital SLRs. Covering a focal range of approximately 25-75mm, the 17-50mm features OS optical stabilization, and a HSM ultrasonic-type focus motor. With a minimum focusing distance of 11 inches throughout the entire zoom range this lens offers a useful semi-macro close up capability, for a maximum reproduction ratio of 1:5.

SKU: 006233 Categories: ,
Principal specifications
Lens type Zoom lens
Max Format size APS-C / DX
Focal length 17–50 mm
Image stabilization Yes (4 stops claimed)
Lens mount Canon EF-S, Nikon F (DX), Pentax KAF3, Sigma SA Bayonet, Sony/Minolta Alpha DT
Maximum aperture F2.8
Minimum aperture F22
Aperture ring No
Number of diaphragm blades 7
Aperture notes Rounded diaphragm
Elements 17
Groups 13
Special elements / coatings 2 FLD glass elements
2 glass mold elements
1 hybrid aspherical lens
Minimum focus 0.28 m (11.02)
Maximum magnification 0.2×
Autofocus Yes
Motor type Ultrasonic
Full time manual No
Focus method Internal
Focus notes For Pentax mount, AF will not function with DSLR cameras that do not support HSM
Distance scale Yes
DoF scale No
Focus distance limiter No
Weight 565 g (1.25 lb)
Diameter 84 mm (3.29)
Length 92 mm (3.62)
Materials Metal mount
Sealing No
Zoom method Rotary (extending)
Filter thread 77 mm
Filter notes Does not rotate on focusing
Hood supplied Yes
Tripod collar No

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