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Sigma 20-40mm f/2.8 AF EX DG Aspherical

Photos - Camera Lens Sigma 20-40mm f/2.8 AF EX DG Aspherical
Outdated Product
$396.00
Mount: Canon EF; Nikon F; Pentax K; Sigma SA; Sony A; Focal length (mm): 20 - 40; Aperture value: f/2.8; Diaphragm, min: 22; Minimum focus distance (m): 0.3; Sensor size: full frame/APS-C; Autofocus drive: is absent; Filter diameter (mm): 82; Dimensions (diameter/length) (mm): 89x107.8
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Sigma 20-40mm f/2.8 AF EX DG Aspherical
$396.00
Sigma 20-40mm f/2.8 AF EX DG Aspherical
System
Canon
Nikon
Minolta
Pentax
Sigma
Sony
Mount
Canon EF
Nikon F
Pentax K
Sigma SA
Sony A
Focal length
20 - 40 mm
Aperture value
f/2.8
Viewing angles
94.5° - 56.8°
Min. diaphragm
22
Minimum focus distance
0.3 m
Maximum zoom
0.22
Sensor size
full frame/APS-C
Autofocus drive
is absent
Design (elements/groups)
17 elements in 13 groups
Number of diaphragm blades
9
Filter diameter
82 mm
Dimensions (diameter/length)
89x107.8 mm
Weight
595 g
Added to E-Catalog
november 2006
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Short description:

The fast wide-angle zoom lens covers the short (20mm) to medium (40mm) focal length range with a constant aperture of F2.8. At any focal length, the lens is focused from a distance of 30 cm, and the maximum magnification is 1:4.6. The lens is perfect for use with digital SLR cameras. Thanks to aspherical lenses in the front and rear lens groups, the lens guarantees effective correction of distortion and all types of aberration.