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New Sigma 70-200mm and 120-300mm f/2.8 EX DG HSM lenses

Sigma has nearly (still three more to come) completed their February delivery plan for special DG lenses ( for use on digital SLRs with an APS-C size image element or smaller). Specifications are now available for the Sigma 70-200mm f/2.8 EX DG HSM and the 120-300mm f/2.8 EX DG HSM telephoto lenses. The 120-300mm lens will be available for Canon, Nikon and Sigma SLR cameras, while the 70-200 lens will be available for Konica Minolta and Pentax too, albeit without HSM...

OVERVIEW

View all Sigma interchangeable lensesSigma 70-200mm f/2.8 EX DG HSM

Fast maximum aperture telephoto lens optimised for digital SLR cameras

SLD glass for superior optical performance
This lens uses two pieces of SLD (the special low dispersion) glass in the front lens group and another two in the rear group for excellent correction of chromatic aberration. High optical performance is demonstrated throughout the entire zoom range. The new multi layer lens coating and lens design reduce flare and ghost, which is a common problem with digital cameras and also creates an optimum color balance.

HSM (Hyper Sonic Motor) for silent and fast auto - focus
The HSM models (the HSM is only available for AF Canon, Nikon and Sigma Mounts) provide quiet high-speed AF function, as well as full time manual focus capability.

Inner focusing and inner zooming systems
This lens incorporates an inner focusing system, which eliminates front lens rotation, allowing the use of a Petal-type Hood and more convenient to use of circular polarizing filter. Since focusing and zooming do not change its overall length, this lens is easy to hold and use. This lens comes with detachable tripod mount.

APO Tele-Converter EX (optional)
The lens can be used with the 1.4x EX or 2.0x EX Apo Tele Converters (optional), becoming a 98-280mm F4 Autofocus telephoto zoom lens or a 140-400mm F5.6 Autofocus telephoto zoom lens respectively. It is also possible to use AE (Automatic Exposure) function, when EX Tele-converters are attached.


Sigma 120-300mm f/2.8 EX DG HSM

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.

SLD glass and aspherical lenses
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. The new 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.

Hyper sonic motor
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 Apo Tele Converters (optional)
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.

Internal Focusing and Internal Zooming
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.

Additional information: View all Sigma interchangeable lenses
May 23, 2005
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