A large-aperture fixed focal length lens is great for achieving expressive bokeh effects and enjoying ultra-high optical performance. On the other hand, photographers often need to change the angle of view to properly capture the scene that presents itself. To solve this decades-long dilemma, SIGMA proudly introduces the 18-35mm F1.8 DC HSM next-generation large-aperture APS-C format standard zoom lens for digital SLR cameras. Taking on the challenge of creating the world??s first* wide-aperture lens to offer an aperture of F1.8 throughout the zoom range, SIGMA has succeeded in creating a zoom lens that offers the same high optical performance of a fixed focal length lens. These outstanding performance characteristics are especially apparent in an APS-C format camera, since it has a slightly greater depth of focus than a full-frame camera. This is a revolutionary lens that overturns preconceptions while expanding the range of photographic expression.
| ?Lens Construction | ?17 elements in 12 groups |
| ?Angle of View | ?76.5?? - 44.2?? |
| ?Number of Diaphragm Blades | ?9 (Rounded diaphragm) |
| ?Minimum Aperture | ?F16 |
| ?Minimum Focusing Distance | ?28cm/11.0in. |
| ?Maximum Magnification Ratio | ?1??4.3 |
| ?Dimensions (Diameter ?? Length) | ?SIGMA SA-Mount ???78mm ?? 121mm / ??3.1in. ?? 4.8in. |
| ?Corresponding AF Mounts / Barcode No. | ?Canon EF Mount ?00-85126-21054-0 |
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