Sigma 105mm F2.8 EX DG Macro Specs
Announced Jun 20, 2004
•
Telephoto macro prime lens | Canon EF, Four Thirds, Pentax KAF, Sony/Minolta Alpha, Sigma SA Bayonet, Nikon F (FX)
| Principal specifications | ||
|---|---|---|
| Lens type | Prime lens | |
| Max Format size | 35mm FF | |
| Focal length | 105 mm | |
| Image stabilization | No | |
| Lens mount | Canon EF, Four Thirds, Pentax KAF, Sony/Minolta Alpha, Sigma SA Bayonet, Nikon F (FX) | |
| Aperture | ||
| Maximum aperture | F2.8 | |
| Minimum aperture | F32 | |
| Aperture ring | No | |
| Number of diaphragm blades | 8 | |
| Aperture notes | Minimum aperture is F45 on Canon, Sigma and Sony mount versions | |
| Optics | ||
| Elements | 11 | |
| Groups | 10 | |
| Focus | ||
| Minimum focus | 0.31 m (12.32″) | |
| Maximum magnification | 1× | |
| Autofocus | Yes | |
| Motor type | Micromotor | |
| Full time manual | No | |
| Focus method | Extending front | |
| Focus notes | Dual focus system. Floating focus mechanism. Screw drive on Nikon, Pentax and Sony mounts | |
| Distance scale | Yes | |
| DoF scale | Yes | |
| Focus distance limiter | yes (0.4m) | |
| Physical | ||
| Weight | 460 g (1.01 lb) | |
| Diameter | 74 mm (2.91″) | |
| Length | 98 mm (3.84″) | |
| Sealing | No | |
| Filter thread | 58 mm | |
| Filter notes | Does not rotate on focusing | |
| Hood supplied | Yes | |
| Other | ||
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