sig 20

Used Sigma 20mm F1.8 EX DG Canon/AF


Condition: Excellent Condition


  • Super Multi Coating to reduce flare and ghosting
  • 9 diaphragm blades provides for a soft bokeh
  • Focus as close as 7.9 inches
  • Petal-type hood
  • Aspherical lens elements in both of the front and rear lens groups compensates for distortion, spherical aberration and astigmatism.
  • 13 Elements in 11 Groups
  • Minimum Aperture: F/22
  • Maximum Aperture: F/1.8
  • Filter thread size: 82mm

Out of stock

Product Description

The Sigma 20mm f/1.8 D EX DG Aspherical Lens has a clutch-like system for switch between AF and MF modes. The system is very similar to the Sigma 105mm f/2.8 EX macro lens I reviewed previously. You push the manual focus ring forward to disengage the focus ring for auto-focusing. For manual focusing, you pull it toward you to engage the clutch. When the ring is set to AF, you can rotate the focusing ring all you want, you won’t change the focus on the lens. When the lens is auto-focusing, it also doesn’t effect the position of the manual-focusing ring. The manual focus ring is wide so there is no chance that you’ll miss it in operation.

Accessories Included:

  • Lens Caps


Additional Information

Product Condition

“Like New Minus” – the rating of the equipment is at 97 to 99 percent of original condition. Only the closest inspections will reveal slight wear. Perfect glass, but the box and accessories are usually not included.
“Excellent Plus” – rates 90 to 96 percent of original condition. Exceptionally nice, but may have slight wear on finish visible only under close inspection. Glass will be very clean.
“Excellent” – 80 to 89 percent of original. Shows moderate wear for the age of the item, with the possibility of small dings or blemishes. Glass may have slight blemishes but will not affect picture quality.
“Bargain” – items are 70 to 79 percent of original condition. More than average wear for the age of the item, and may have dents, dings or finish loss. Glass may have marks or blemishes, but should not affect picture quality.
“Ugly” – The look only a photographer would love. “UGLY” means equipment is rough, with multiple impressions in metal, excessive finish loss and brassing. Glass will have marks, fungus and/or haze which will affect picture quality.


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