"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.|Adorama Camera Lens Valuable Bundle. Kit Includes.|Sigma 105mm f/2.8 EX DG HSM Macro Lens for Nikon DSLR, Hood Adapter, Lens Hood, Front and Rear Lens Caps, Sigma 1 Year North and South America Limited Warranty (3 Year USA Extended Warranty for a Total of 4 Years from Date of Purchase).|62mm Photo Essentials Filter Kit, Ultra Violet (UV) Filter, Circular Polarizer, 812 Warming Filter, Pouch.|Universal Lens Cap Tether.|Adorama Cleaning Kit for Optics and Cameras. Kit Includes: Spray Cleaning Fluid, Cotton Swabs, Lens Cloth, 3 Sheets Universal LCD Screen Protectors, Squeegee Card, Lipstick Brush, Blower Brush, Lens Tissue, New Deluxe Storage Bag."