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28mm F1.8 EX DG ASP Macro

Designed for use with full frame digital SLR cameras. May also be used with smaller APS-c size sensors.
Two Aspherical glass elements offer correction for distortion
Capable of Macro photography with minimum shooting distance of 7.9 inches and provides a reproduction ratio of 1:2.7
Floating optic focusing system optimizes this lens for various working distances in order to provide excellent quality images
A non-rotating front lens makes it suitable for a petal-type hood and polarizing filters
  • Aspherical
  • EX Lens
  • DG for Digital
#440 $480.00 MSRP

SPECIFICATIONS

Lens Construction 10 Elements in 9 Groups
Angle of View 75.4ยบ
Number of Diaphragm Blades 9
Mininum Aperture f22
Minimum Focusing Distance 20 cm / 7.9 in
Filter Size (mm) 77
Maximum Magnifications 1:2.9
Dimensions
(Diameter x Length)
83.5 x 80 mm/3.3 x 3.1 in
Extended Dimensions 88.9 mm / 3.5 in
Weight 480g / 16.9oz.
Corresponding Mounts
Sigma 
Nikon  D
Canon 
Sony/Minolta  D
Pentax (3)
D - Distance Information Function

(3) Pentax mount lenses cannot be used with SF series AF cameras.

* Nikon Mount: NO built in motor lens: NOT compatible with D40, D40x, D60, D3000, D5000

Chart Guide

MTF CHART

MTF Chart

LENS CONSTRUCTION

Lens Construction

For many photographers, the 28mm focal length is the ideal general purpose wide angle lens. Its wide enough for most scenic and landscape assignments and when used indoors for building interiors or groups of people, its wide angle effect is not as extreme as with shorter focal length lenses. A forgiving wide angle lens for newcomers to wide angle photography and highly effective for professionals with its EX construction and fast 1.8 aperture. This high speed performance is excellent for photojournalists doing low-light documentary photography and its use of two aspherical lens elements assures excellent optical performance.

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