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Sigma 120-300mm f2.8 EX DG HSM lens introduction
Ilse Jurriën : May 23th 2005 - 23:15 CET
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SigmaSigma 120-300mm f2.8 EX DG HSM : Sigma is pleased to announce the launch of the new Sigma 120-300mm f2.8 EX DG HSM lens, a digitally optimised telephoto zoom lens covering ultra-telephoto up to 300mm with a fast maximum aperture of F2.8 at all focal lengths. This lens represents a revolutionary leap forward in ease of use. This was achieved by transforming a large-aperture 300mm F2.8 lens into a zoom lens that allows you to determine the picture composition you want without having to change your vantage point. It has two SLD (the special low dispersion) glass elements in front group and another element of SLD is being used for rear group for excellent correction of chromatic aberration.
Sigma 120-300mm f2.8 EX DG HSM lens introductionSigma 120-300mm f2.8 lens
The new Sigma 120-300mm lens coating reduces flare and ghost, a common problem with digital cameras and also creates an optimum natural colour balance. It prides excellent imaging capability like a prime lens. The AF drive for Sigma SA, Canon and Nikon cameras is equipped with a silent, responsive and high speed HSM , which also provides full-time manual focus function.

Sigma 120-300mm - Apo tele converter
High-speed focusing is possible when this lens is used with dedicated APO EX tele-converters (1.4x and 2x). By adding an APO tele-converter, which is sold separately, you can use this lens as a 168-420mm F4 AF tele-zoom lens with a 1.4x tele-converter, or as a 240-600mm F5.6 AF ultra-telephoto zoom lens with a 2x tele-converter. It is also possible to use AE (Automatic Exposure) function, even EX Tele-converters are attached to the lens. Since focusing and zooming do not change its overall length, this lens is easy to hold and use. In addition, since the front of the lens does not rotate, a circular polarizing filter can be easily attached and use.

Sigma 120-300mm lens - Specifications
· Focal Length :120-300mm
· Minimum Aperture :F32
· Lens Construction :18 Elements in 16 Groups
· Angle of View :20.4°- 8.2°
· Number of Diaphragm Blades :9pcs
· Minimum Focusing Distance :150cm(59”)-250cm(98“)
· Maximum Magnification :1:8.6
· Filter Size :105mm
· Lens Hood :Bayonet Hood
· Dimensions :Diameter 112.8mm (4.4”) x Length 271mm (10.6”)
· Weight :2600gr/91.71oz
· Fittings :Sigma, Canon and Nikon-D
· SRP :£1999.99

   Sigma APO 70-200mm F2.8 EX DG HSM lens
   Sigma 300mm F2.8 APO EX DG HSM lens
   Sigma 50-500mm F4-6.3 EX DG HSM lens
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