Maker | Sigma |
---|---|
Technical data | |
Type | Zoom |
Focal length | 12-24mm |
Crop factor | 1.0 |
Aperture (max/min) | f/4.5-f/22 |
Close focus distance | 28cm |
Max. magnification | 1:7.1 |
Diaphragm blades | 6 |
Construction | 16 elements in 12 groups |
Features | |
Short back focus | No |
Ultrasonic motor | Yes |
Lens-based stabilization | No |
Macro capable | No |
Application | Landscape |
Physical | |
Max. length | 102.5mm |
Diameter | 87mm |
Weight | 600g |
Filter diameter | rear gelatin |
Accessories | |
Lens hood | built-in |
Angle of view | |
Diagonal | 122 to 84.1 degrees |
History | |
Introduction | June 2003 |
Retail info | |
MSRP | 1050 USD |
The Sigma 12-24mm f/4.5-5.6 EX DG HSM is a professional-level wide-angle zoom lens made by Sigma Corporation. [1] At launch it was the widest rectilinear lens available for full-frame 35mm SLR cameras, providing a field of view of 122 degrees. It has since been surpassed by the Canon EF 11-24mm f/4L zoom lens and the Irix 11mm f/4, a manual focus prime lens. [2] The Sigma 12-24 has low distortion even compared to less wide zooms like the Canon EF 16-35mm lens. [3]
This lens is available in Canon, Nikon, and Sigma, Pentax, and Sony mounts. HSM focusing is available only in the Canon, Nikon, and Sigma variants. [4] The build quality is typical of Sigma EX lenses, with a painted metal lens barrel and damped focus and zoom rings. As expected for a lens of these specifications, there is a bulbous front element. [5]
Sigma Corporation is a Japanese company, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan. Although Sigma produces several camera models, the company is best known for producing high-quality lenses and other accessories that are compatible with the cameras produced by other companies.
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