Sigma 24-70mm F2.8 EX DG Macro Specs
Announced Sep 22, 2004
•
Zoom lens | Canon EF, Pentax KAF, Sony/Minolta Alpha, Sigma SA Bayonet, Nikon F (FX)
| Principal specifications | ||
|---|---|---|
| Lens type | Zoom lens | |
| Max Format size | 35mm FF | |
| Focal length | 24–70 mm | |
| Image stabilization | No | |
| Lens mount | Canon EF, 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 | 9 | |
| Optics | ||
| Elements | 14 | |
| Groups | 13 | |
| Special elements / coatings | 2 Special Low Dispersion (SLD) glass elements 3 aspherical elements | |
| Focus | ||
| Minimum focus | 0.40 m (15.75″) | |
| Maximum magnification | 0.26× | |
| Autofocus | Yes | |
| Motor type | Micromotor | |
| Full time manual | No | |
| Focus method | Internal | |
| Focus notes | Dual focus system. | |
| Distance scale | Yes | |
| DoF scale | Yes | |
| Physical | ||
| Weight | 715 g (1.58 lb) | |
| Diameter | 89 mm (3.5″) | |
| Length | 116 mm (4.55″) | |
| Sealing | No | |
| Zoom method | Rotary (extending) | |
| Filter thread | 82 mm | |
| Hood supplied | Yes | |
| Other | ||
| Notes | Nikon, Sony and Pentax versions use 'screw-drive' focusing | |
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