Sigma 20mm f/1.8 EX DG ASP RF Lens Specifications

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  • FX coverage
  • Autofocus (but no in-lens focus motor), rear focus
  • 13 elements in 11 groups, 2 aspherical elements
  • 9-blade aperture diaphragm
  • smallest aperture is f/22 
  • 82mm filter ring
  • 7.9" (0.2m) minimum focus; 1:4 maximum reproduction ratio
  • 3.4 x 3.5" (87 x 88.5mm) long, diameter
  • 18.3 ounces (520g) weight
  • included LH875-02 548 petal lens hood, caps
  • US$700
  • Model Number 411
Apr 21, 2013 at 12:09 PM
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