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Optical design
| Format: 35mm SLR
Type: Zoom lens
Focusing: Auto Focus (AF)
Lens mounts: Canon EF, EF-S, Canon EF, EF-S, Canon EF, EF-S, Canon EF, EF-S, Sony A / Minolta A, Sony A / Minolta A, Sony A / Minolta A, Sony A / Minolta A, Nikon F (FX, DX), Nikon F (FX, DX), Nikon F (FX, DX), Nikon F (FX, DX), Pentax K, Pentax K, Pentax K, Pentax K, Sigma SA, Sigma SA, Sigma SA, Sigma SA
First year of production: 2007
Optical design: 18 elements in 15 groups
Features: Ultra-Sonic Motor | |
Specifications:
| Focal length | Max. aperture | Min. aperture | Blades | Min. Focus (m.) | Filter Ø (mm.) | Weight (gr/oz) | Length (mm/in) |
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| 70mm - 200mm | f/2.8 | f/22 | 9 | 1 | 77 | 1370/48,3 | 184.4/7,3 |
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Additional information:
The Sigma 70-200 mm f/ 2.8 EX DG APO MACRO HSM II
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Diameter 86.5 mm
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angle 34.3°-12.3° (x1.0)
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max. magnification 1:3.5
The Sigma 70-200 mm F2.8 EX DG APO MACRO HSM II is an all-purpose fast zoom lens, ensuring a high quality image. Minimum working distance of 100 cm and a maximum magnification of 1:3.5 enable close-up shooting.
When used on APS-C (crop) cameras, an equivalent focal length is 112- 320 mm for Canon and 105-300 mm for Nikon ( G-type lens with a built-in motor).
The maximum aperture of 2.8 enables shooting in poor lighting conditions without a tripod or a flash. A 9-blade aperture produces rather beautiful blurring of out-of-focus areas. Thanks to a hyper sonic motor (HSM) focusing of the Sigma 70-200 mm f/ 2.8 EX DG APO MACRO HSM II is rather fast, silent and precise. Manual adjustment is possible in AF mode. The internal system of focusing and zooming does not affect the size of the lens. The front lens is non-rotating. It does not have a stabilizer. It is compatible with Sigma APO teleconverters (except for Pentax).
The optical scheme of the Sigma 70-200 mm F2.8 EX DG APO MACRO HSM II includes two SLD elements and three ELD elements, which ensures an excellent correction of all aberrations. Thanks to a super multi-coating, pictures do not suffer from flare and rereflections.
LH850-01 petal hood, a changeable ring mount for the TS-21 tripod and a soft case are completed with the lens.
Links to online resources:
PDF Files:
Posted by: dv Date of publication: 10.04.2011
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