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| Manufacturer | Sigma | Sigma | Canon | Leica |
|---|---|---|---|---|
| Model | A 24-35 mm f/2.0 DG HSM | A 18-35 mm f/1.8 DC HSM | EF 20-35 mm f/2.8L | Tri-Elmar-M 28-35-50 mm Asph |
| Lenst style | Wide angle zoom | Wide angle zoom | Wide angle zoom | Wide angle zoom |
| Focal length | 24 - 35 mm | 18 - 35 mm | 20 - 35 mm | 28 - 50 mm |
| Maximum aperture | f/2 | f/1.8 | f/2.8 | f/4 |
| Angle of view | 84.1 - 63.4 o | 76.5 - 44.2 o | 94.5 - 63.4 o | 75 - 43 o |
| Closest focusing distance | 0.28 m | 0.28 m | 0.5 m | 1 m |
| Maximum magnification | 1:4.4 | 1:4.3 | 1:11.11 | 1:18 |
| Minimum aperture | 16 | 16 | 32 | 22 |
| Diaphragm blades | 9 | 9 | 8 | 0 |
| Auto focus type | AF HSM | HSM | AF | MF |
| Lens Construction | 18 elements / 13 group | 17 elements / 12 group | 15 elements / 12 group | 8 elements / 6 group |
| Filter diameter | 82 mm | 72 mm | 72 mm | 0 mm |
| Macro Yes/No | No | No | No | No |
| Stabilization | No | No | No | No |
| Available mounts | Canon EF Nikon F Sigma |
Nikon F Sony A / Minolta Pentax K Canon EF-S |
Canon EF | Leica M / VM-Mount |
| Dimensions | 87.6 x 122.7 mm | 121 x 78 mm | 89 x 79.2 mm | 55 x 68 mm |
| Weight | 940 g | 810 g | 570 g | 340 g |
| Additional information | Announced: 19.06.2015 | 5 SLD element, 4 aspherical lenses, Announced: 18 April 2013 |
Marketed October 1989 | Internal thread for screw-in type filters E 49 Lens combines three of the focal lengths 28-35-50mm |
| Score [max 5.00] | No score | |||
| Our Review |
LensTip.com
