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Sigma 12-24mm f/4.5-5.6 lens

From Wikipedia, the free encyclopedia
12-24mm F4.5-5.6
MakerSigma
Technical data
TypeZoom
Focal length12-24mm
Crop factor1.0
Aperture (max/min)f/4.5-f/22
Close focus distance28cm
Max. magnification1:7.1
Diaphragm blades6
Construction16 elements in 12 groups
Features
Short back focusNo No
Ultrasonic motorYes Yes
Lens-based stabilizationNo No
Macro capableNo No
ApplicationLandscape
Physical
Max. length102.5mm
Diameter87mm
Weight600g
Filter diameterrear gelatin
Accessories
Lens hoodbuilt-in
Angle of view
Diagonal122 to 84.1 degrees
History
IntroductionJune 2003
Retail info
MSRP1050 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]

See also

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References

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  1. ^ Sigma Corporation (2003). "12-24mm F4.5-5.6 EX DG ASPHERICAL HSM". Archived from the original on August 5, 2009. Retrieved 2009-08-21.
  2. ^ Ltd, Magezine Publishing. "Irix 11mm f/4 Firefly Review". ePHOTOzine. Retrieved 2017-08-04.
  3. ^ Juza Nature Photography (2008). "Sigma 12-24mm f/4.5-5.6 EX DG HSM Review". Retrieved 2009-08-21.
  4. ^ "Sigma 12-24 mm f/4 DG HSM | PM". PM (in French). 2016-11-13. Retrieved 2016-11-13.
  5. ^ Photozone.de. "Sigma AF 12-24mm f/4.5-5.6 HSM EX DG - Test Report / Review". Retrieved 2009-08-21.
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