Lens type : Zoom lens
Max Format size : APS-C / DX
Focal length : 18-35 mm
Image stabilization : No
Lens mount : Sigma SA

Aperture -
Maximum aperture : F1.8
Minimum aperture : F16.0
Number of diaphragm blades : 9
Aperture notes : Rounded diaphragm

Optics -
Elements : 17
Groups : 12
Special elements / coatings : 5 SLD glass elements, 4 glassmold aspherical elements

Focus -
Minimum focus : 0.28 m (11.02")
Maximum magnification: 0.23 x
Autofocus ; Yes
Motor type Ring-type ultrasonic
Full time manual : Yes
Focus method : Internal
Distance scale : Yes
DoF scale : No

Physical -
Weight : 810 g (1.79 lb)
Diameter : 78 mm (3.07 in)
Length : 121 mm (4.76 in)
Zoom method : Rotary (internal)
Filter thread : 72 mm
Hood supplied : Yes

Petal-Type Lens Hood
Front Lens Cap
Rear Lens Cap