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Sigma Zoom Super Wide Angle 20-40mm f/2.8 (D) EX Aspherical DG DF Autofocus Lens for Sony Alpha & Minolta Maxxum Series

B&H # SI204028MAF Mfr # 513205
No Longer Available

Sigma's new 20-40mm f/2.8 EX Aspherical DF lens combines a constant f/2.8 maximum aperture with ultrawide-to-wide focal lengths in a new design which is easier to handhold. The lens incorporates a "Dual Focus" mechanism, which makes the focus ring stay stationary during autofocusing. Unlike most other autofocus lenses, torque of the focusing ring during manual focus remains excellent. A helical focus system eliminates front lens rotation.

2 Aspherical lens elements
Excellent close focus capability
Filter Size 82mm
f/Stop Range 2.8-32
Minimum Focus Distance 11.8"
Magnification 1:4.6
Zoom/Focus Control Two-touch
Angle of View 94.5 to 56.8 Degrees
Groups/Elements 13/17
Length 4.2"
Maximum Diameter 3.5"
Weight 1.31 lb
Sigma Zoom Super Wide Angle 20-40mm f/2.8 (D) EX Aspherical DG DF Autofocus Lens for Sony Alpha & Minolta Maxxum Series
  • Front & Rear Lens Caps
  • Hood
  • 1-Year Worldwide Warranty + 3-Year Extended USA Warranty
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