Used Sigma 20mm F1.8 EX DG Canon/AF
- 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
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.
- Lens Caps
“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.