Sigma 17-50mm F2.8 EX DC OS HSM

Announced Feb 20, 2010 •
Zoom lens | Canon EF-S, Nikon F (DX), Pentax KAF3, Sigma SA Bayonet, Sony/Minolta Alpha DT | 583
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
Aperture
Maximum aperture F2.8
Minimum aperture F22
Aperture ring No
Number of diaphragm blades 7
Aperture notes Rounded diaphragm
Optics
Elements 17
Groups 13
Special elements / coatings 2 FLD glass elements 2 glass mold elements 1 hybrid aspherical lens
Focus
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
Physical
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 77.0 mm
Filter notes Does not rotate on focusing
Hood supplied Yes
Tripod collar No
Other
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