Sigma 105mm f2.8 EX DG Macro OS Lens Nikon

FeaturesSIGMA OS 105MM F2.8 EX MACRO with Nikon mount. Equipped with Sigma’s unique Optical Stabilizer Technology – the OS function offers the use of shutter speeds up to 4 stops lower than would otherwise be possibleThis large aperature medium telephoto Macro lens offers advanced performance of close-up photography designed to meet the most demanding needs of professional photographers –one Special Low Dispersion (SLD) and one high refractive index SLD lens elements provide excellent correction of color aberration and distortionThe incorporation of Sigma’s Hyper Sonic Motor (HSM) provides quiet, high speed and accurate auto-focusing as well as full time manual focus capabilityA floating focusing system moves two different lens groups in the optical path to different positionsThis lens also features Sigma’s weatherproof design for use in harsh conditions It is also possible to use this lens with Sigma APO teleconverters, enabling longer telephoto and Macro capabilitySigma’s super multi-layer coating minimizes flare and ghosting – a common problem for digital camerasLens construction: 16 elements in 11 groups - minimum focusing distance 12.3” (31.2cm) with maximum magnification ratio of 1:1 – the 9 blade rounded diaphragm creates an attractive blur to the out of focus areas of the imageFilter size: -62mm

Weight: 725g (25.6oz)

Length: 3.1” (7.87cm),

Diameter: 5” (12.7cm) – includes case, bayonet type hood and hood adapter