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Pre-PMA 2005: The second of three DC (digital SLR only) lenses announced by Sigma today is the 10 - 20 mm F4.0 - F5.6 EX DC HSM, an interesting super wide-angle lens which would provide 15 - 30 mm equiv. on a 1.5 FOV crop camera (such as the Nikon D70). This lens also features Sigma's HSM (HyperSonic Motor) for high speed silent focusing with manual focus override.
Super wide-angle zoom lens designed exclusively for digital SLR cameras
Sigma Corporation is pleased to announce the launch of the new 10-20mm F4-5.6 EX DC HSM lens.
10-20mm F4-5.6 EX DC HSM lens allows enjoyment of super wide-angle photography and it is a very powerful tool for indoor shooting and landscape photography with APS-C size image sensors of digital SLR cameras.
Wide angle of view (102.4°at 10mm and 63.8°at 20mm) offers the photographer greater freedom of expression. Three SLD glass elements are employed for effective compensation of color aberration, which is a common problem with super-wide angle lenses. One piece of glass mold and two hybrid aspherical lenses, offer excellent correction for distortion, as well as all types of aberration.
|Focal Length||10 - 20 mm|
|Lens Construction||14 Elements in 10 Groups|
|Angle of View||102.4° - 63.8°|
|Number of Diaphragm Blades||6 pieces|
|Minimum Focus Distance||24 cm (9.4 in)|
|Filter Size||77 mm|
|Lens Hood||Petal Hood|
|Dimensions (dia x len)||84 mm (3.3 in) x 81 mm (3.2 in)|
|Lens mounts||Canon, Sigma, Nikon|