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Optical design
| Format: 35mm SLR
Type: Zoom lens
Focusing: Auto Focus (AF)
Lens mounts: Canon EF, EF-S, Sony A / Minolta A, Nikon F (FX, DX), Pentax K, Sigma SA
First year of production: 2001
Optical design: 17 elements in 13 groups
| | Specifications:
Focal length | Max. aperture | Min. aperture | Blades | Min. Focus (m.) | Filter Ø (mm.) | Weight (gr/oz) | Length (mm/in) |
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15mm - 30mm | f/3.5 - f/4.5 | f/22 | 8 | 0.3 | 82 | 615/21,7 | 130/5,1 |
| Additional information:
The Sigma 15-30mm f/3.5-4.5 EX Aspherical DG DF is an ultra wide-angle zoom lens for 35mm DSLR cameras.
The lens is ideally suitable for landscape photography. Among its advantages is an all-metal body and the possibility of using gelatin filters. The lens comes complete with a special hood designed for APS-C cameras. The hood enables the use of 82 mm filters.
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effective focal length 85 mm
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max. magnification 0.25:1
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diameter 64 mm
Posted by: fiy94yan Date of publication: 01.02.2013
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