Sigma 105mm f/2.8 EX DG OS HSM

Press Release:

The Sigma Corporation is pleased to announce the Sigma MACRO 105mm f/2.8 EX DG OS HSM.

The successor to the Sigma MACRO 105mm F2.8 EX DG, introduced to market in June 2004, this large aperture medium telephoto macro lens incorporates the latest optical design technology, offering advanced performance for cloase-up photography. A Special Low Dispersion (SLD) lens and one high refractive index SLD lens provide excellent correction for all types of aberration and distortion.

A floating focusing system moves two different lens groups in the optical path to different positions. This system compensates for astigmatic aberration and spherical aberration and provides extremely high optical performance from infinity to 1:1 Macro.

The Super Multi-Layer Coating reduces flare and ghosting, providing high contrast images.
It is also possible to use this lens with Sigma’s optional APO Tele Converters. Sigma’s own proprietary OS (Optical Stabiliser) function helps with handheld close-up photography and the HSM (Hyper Sonic Motor) ensures quiet and high speed autofocus as well as full-time manual focus capability.

This lens features a splash resistant design for use in harsh conditions and a rounded 9 blade diaphragm creating a smooth blur to the out of focus areas of the image.

Sigma 105mm f/2.8 EX DG OS HSM: Specification

Minimum Aperture	f/22
Minimum Focusing Distance	31.2cm
Lens Construction	16 Elements in 11 Groups
Maximum Magnification	1:1
Angle of View	23.3°
Filter Size	62mm
No. of Diaphragm Blades	9 pcs
Lens Hood	Bayonet-type
Weight	TBA
SRP	TBA
Dimensions	Diameter 78.3mm x Length 126.4mm

For more information please visit the Sigma website.

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