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| 61 | 26 | 18 |
The Sigma 10-20mm F3.5 EX DC HSM is a relatively fast wide-angle zoom designed exclusively for APS-C format Digital SLRs, covering an effective focal range of 15-30mm. This lens squeezes a relatively fast F3.5 constant maximum aperture into a body about 10% larger in each dimension than the company's popular 10-20mm F4-5.6 EX DC HSM. The lens has a minimum focus distance of 24 cm (9.4 inches) throughout the zoom range, and features two Super-Low Dispersion glass and two Extraordinary-Low Dispersion glass elements for the correction of chromatic aberrations.
| Lens type | Zoom lens |
| Focal length | 10–20 mm |
| Image stab. | No |
| Lens mount | Canon EF, Pentax KAF3, Sony Alpha, Sigma SA, Nikon F (DX) |
| Max aperture | F3.5 |
| Min aperture | F22.0 |
| Min focus | 0.24 m (9.45″) |
| Max magnification | 0.15 x |
| Weight | 520 g (1.15 lb) |
| Length | 88 mm (3.47″) |
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 | 24.1 megapixels 3″ screen APS-C sensor |
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