Manufacturer’s Description

This super wide angle lens is ensured minimal light-fall-off with superior peripheral brightness. The iris diaphragm has 9 diaphragm blades to obtain beautiful out of focus images in the foreground and background. This is an ideal DG lens optimized Digital SLR camera. The lens incorporates Dual-Focus (DF) mechanism. It is easy to hold the lens, since the focusing ring does not rotate during auto-focus, yet it provides adequate focusing torque of the focusing ring during manual focusing of the lens.

The Specs

Physical Specifications
Dimensions 3.50" Length x 3.50" Diameter
Weight 1.15 lbs
More Info
URL http://www.sigma-photo.com
Additional Specifications
Brand Name Sigma
Category Lens Adapters
Description 0
Lens Construction 13 Elements in 11 Groups
normalized-Weight 18.4
Height 3.4 in
Class Camera Accessories
Width 3.5 in
Field of View 94.5 degrees
normalized-Height 86.36
Optics
Filter Size Supported 82 mm
Min Focus Distance 7.87"
Min Focal Length 20 mm
Quick Glance
Lens Type Super Wide Angle
Max Aperture f/ 1.8
Compatible Camera Mount Nikon AF D Cameras
Max Focal Length 20 mm

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