The 10-20mm F3.5 EX DC HSM lens offers photographers greater freedom of expression by rotating the zoom ring. It is a very powerful tool for architectural, indoor and landscape photography.
Sigma (202954) 10-20mm f/3.5 EX DC HSM Lens for Canon EOS DSLRs (EF). This DC series lens is exclusively suitable for Digital SLR cameras with an APS-C sized image sensor. Sigma DG range lenses should be used with full frame 35mm format cameras. The Sigma 10-20mm EX DC lens is an Ultra Wide Zoom model which has a constant f/3.5 maximum aperture which makes it ideal for indoor photography and gives the photographer reliability and predictability in exposures.With up to 102 degrees field of view (depending on camera) there is a wide vista recorded giving an exaggerated perspective for interesting effects.
| Lens Type | Wide Zoom |
| Max Format Size | APS-C |
| Angle of View | 109.7 - 70.7 degrees |
| Focal Length | 10-20mm |
| Lens Mount | Canon EF |
| Maximum Aperture | f/3.5 |
| Minimum Aperture | F22 |
| Diaphragm Blades | 7 Blades |
| Lens Construction | 13 Elements in 10 Groups |
| Minimum Focus | 24cm / 9.4in. |
| Maximum Magnification | 1:6.6 |
| Filter Thread | Diameter 82mm |
| Included Accessories | 10-20mm Lens, Front and Rear Caps, Petal Hood |
| Weight | 520g / 18.3oz. |
| Dimension | (DxL) 87.3 x 88.2 mm |
Sigma (202954) 10-20mm f/3.5 EX DC HSM Lens for Canon EOS DSLRs (EF). This DC series lens is exclusively suitable for Digital SLR cameras with an APS-C sized image sensor. Sigma DG range lenses should be used with full frame 35mm format cameras. The Sigma 10-20mm EX DC lens is an Ultra Wide Zoom model which has a constant f/3.5 maximum aperture which makes it ideal for indoor photography and gives the photographer reliability and predictability in exposures.With up to 102 degrees field of view (depending on camera) there is a wide vista recorded giving an exaggerated perspective for interesting effects.