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SIGMA EX 20 mm - 40 mm F/2.8 Riom lens

The SIGMA EX 3.5 in F/2.8 Riom lens from SIGMA is an ideal accessory to your camera collection. High quality accessories from SIGMA can extend the enjoyment of your camera.  more

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Zoom Wide Angle 20-40mm f/2.8 EX...

Sigmas new 20-40mm f/2.8 EX Aspherical DF lens combines a constant f/2.8 maximum aperture with ultrawide-to-wide...

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ProductInfo

Description

  • General

  • BrandSIGMA
  • Length4 in
  • Diameter3.5 in
  • Weight21.2 oz
  • Product TypeRÏom lens
  • Lens System

  • Special FunctionsRÏom
  • Focal Length20 mm - 40 mm
  • Lens ApertureF/2.8
  • Magnification1 / 4.6
  • Min Focus Range11.8 in
  • Focus AdjustmentAutomatic, manual
  • Max View Angle94.5 degrees
  • Min View Angle56.8 degrees
  • Lens Construction13 group(s) / 17 element(s)
  • Filter Size82 mm
  • Diaphragm Blades9
  • FeaturesInternal focusing system, aspherical lens
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