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| Manufacturer | Sigma | Canon | Nikon Nikkor | Sony |
|---|---|---|---|---|
| Model | 24-70 mm f/2.8 EX DG HSM | EF 24-70 mm f/2.8L USM | AF-S 24-70 mm f/2.8G ED | Carl Zeiss Vario Sonnar 24-70 mm f/2.8 T* SSM |
| Lenst style | Universal zoom | Universal zoom | Universal zoom | Universal zoom |
| Focal length | 24 - 70 mm | 24 - 70 mm | 24 - 70 mm | 24 - 70 mm |
| Maximum aperture | f/2.8 | f/2.8 | f/2.8 | f/2.8 |
| Angle of view | 84.1 - 34.3 o | 84 - 34.3 o | 84 - 34.3 o | 84 - 34.3 o |
| Closest focusing distance | 0.38 m | 0.38 m | 0.38 m | 0.34 m |
| Maximum magnification | 5.3 | 1:2.63 | 1:3.7 | 1:4 |
| Minimum aperture | 22 | 22 | 22 | 22 |
| Diaphragm blades | 9 | 8 | 9 | 9 |
| Auto focus type | HSM | AF USM | SWM | SSM |
| Lens Construction | 14 elements / 12 group | 16 elements / 13 group | 15 elements / 11 group | 17 elements / 13 group |
| Filter diameter | 82 mm | 77 mm | 77 mm | 77 mm |
| Macro Yes/No | No | No | No | No |
| Stabilization | No | No | No | No |
| Available mounts | Canon EF Nikon F Sony A / Minolta Sigma Pentax K |
Canon EF | Nikon F | Sony A / Minolta |
| Dimensions | 94.7 x 88.6 mm | 83.2 x 123.5 mm | 133 x 83 mm | 111 x 83 mm |
| Weight | 790 g | 950 g | 900 g | 955 g |
| Additional information | 1 ELD, 2 SLD and 3 aspherical elements. Super Multi Layer Coating. Anounced: Sept. 2008. | Marketed November 2002 | 3 ED glass elements, 3 aspherical lenses and one Nano Crystal Coat. Anounced: Aug. 2007 | 2 ED elements, 2 aspherical lenses, T* coating. Anounced: January 2008. |
| Score [max 5.00] | ||||
| Our Review |
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