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| Manufacturer | Olympus | Canon | Nikon Nikkor | Pentax |
|---|---|---|---|---|
| Model | Zuiko Digital ED 14-35 mm f/2.0 SWD | EF 28-70 mm f/2.8L USM | AF-S 28-70 mm f/2.8D IF-ED | smc FA 28-70 mm f/2.8 AL |
| Lenst style | Universal zoom | Universal zoom | Universal zoom | Universal zoom |
| Focal length | 14 - 35 mm | 28 - 70 mm | 28 - 70 mm | 28 - 70 mm |
| Maximum aperture | f/2 | f/2.8 | f/2.8 | f/2.8 |
| Angle of view | 75 - 34 o | 75.4 - 34.4 o | 74 - 34.2 o | 75 - 34.5 o |
| Closest focusing distance | 0.35 m | 0.5 m | 0.5 m | 0.43 m |
| Maximum magnification | 1:8.3 | 1:5.56 | 1:5.6 | 1:4 |
| Minimum aperture | 22 | 22 | 22 | 22 |
| Diaphragm blades | 9 | 8 | 9 | 0 |
| Auto focus type | SWD | USM | AF | AF |
| Lens Construction | 18 elements / 17 group | 16 elements / 11 group | 15 elements / 11 group | 14 elements / 11 group |
| Filter diameter | 77 mm | 77 mm | 77 mm | 67 mm |
| Macro Yes/No | No | No | Yes | No |
| Stabilization | No | No | No | No |
| Available mounts | Four Thirds | Canon EF | Nikon F | Pentax K |
| Dimensions | 86 x 123 mm | 83.2 x 117.6 mm | 88.5 x 121.5 mm | 104 x 84.5 mm |
| Weight | 915 g | 880 g | 935 g | 800 g |
| Additional information | Internal focusing, dust and splash proof | Marketed November 1993 | Marketed 1999 | |
| Score [max 5.00] | ||||
| Our Review |
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