swpp.co.uk/news/2012/Lens
Published 17/04/12

SIGMA 105mm f2.8 EX DG OS HSM

Medium telephoto macro lens incorporating Sigma’s Optical Stabiliser

sigma_105mm.jpg

The Sigma Corporation is pleased to announce that the Sigma MACRO 105mm F2.8 EX DG OS HSM is now available in Sony AF fit.

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 close-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 11 Macro.

The Super Multi-Layer Coating reduces flare and ghosting, providing high contrast images.It is also possible to use this lens with Sigmas optional APO Tele Converters. Sigmas 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.


THE SPECIFICATIONS

Minimum Aperture F22
Minimum Focusing Distance 31.2cm
Lens Construction 16 Elements in 11 Groups
Maximum Magnification 11
Angle of View 23.3
Filter Size 62mm
No. of Diaphragm Blades 9 pcs
Lens Hood Bayonet-type
Weight 725g
SRP £649.99
Dimensions Diameter 78.3mm x Length 126.4mm


1st Published 17 April 2012 10:10
last update 06/03/2013 16:15:22



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