The Sigma 105mm f/2.8 EX DG OS HSM Macro Lens for Nikon DSLR Cameras offers advanced performance of close-up photography. The OS (Optical Stabilizer) system enables handheld 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 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 APO TELE CONVERTERS. The HSM (Hyper Sonic Motor) ensures quiet and high speed autofocus as well as full-time manual focus capability. This lens features a splash proof design for use in harsh conditions and a rounded 9 blade diaphragm creating an attractive blur to the out of focus areas of the image.
The Sigma 105mm F/2.8 is commonly used for Macro photography and more.The Sigma 105mm F/2.8 is most used by customers who consider themselves to be a Photo enthusiast among others.The Sigma 105mm F/2.8 is popular because customers like the following qualities of the Sigma 105mm F/2.8: Consistent output, Durable, Fast / accurate auto-focus, Nice bokeh and Strong construction.