Sigma 10-20mm f/3.5 EX DC HSM

  • DX coverage
  • Autofocus (in-lens focus motor), internal focus
  • 13 elements in 10 groups, 4 aspherical, 2 ELD, 1 SLD elements
  • 7-blade aperture diaphragm
  • smallest aperture is f/22 
  • 82mm filter ring
  • 9.4" (0.24m) minimum focus; 1:6.6 maximum reproduction ratio
  • 3.5 x 3.4" (88.2 x 87.3mm) long, diameter
  • 18.3 ounces (520g) weight
  • included LH873-01 202 petal lens hood, soft case, caps
  • US$950
  • Model Number 202


Thom's Mini Review: Either I got a bad sample or this lens isn't as good as the 10-20mm f/4-5.6 I was using (the MTF seems a little better for the variable aperture lens even in Sigma's charts). Thus, you're buying this lens mostly because of the f/3.5, which suggests you're using it indoors, not outdoors as a landscape lens. 

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