SIGMA 10-20mm f3.5 EX DC HSM PERFECT NEW CONDITION WORKS FLAWLESSLY, SUPER SHARP! GREAT FOR REAL ESTATE INTERIOR / EXTERIORS OR ANY ADVERTISING ON INSTAGRAM Highlights NIKON F-Mount Lens/DX Format Aperture Range: f/3.5 to f/22 Two ELD Elements, One SLD Element Four Aspherical Elements Super Multi-Layer Coating Hyper Sonic Motor AF System 7-Blade Diaphragm Features Covering a flexible ultra-wide range, the Nikon F-mount 10-20mm f/3.5 EX DC HSM from Sigma is a versatile zoom well-suited for landscape, architectural, and interior photography. The lens's optical design incorporates a series of low dispersion and aspherical elements, which help to reduce chromatic and spherical aberrations throughout the zoom range, as well as contribute to improved sharpness and clarity. A Super Multi-Layer Coating is also used to suppress flare and ghosting for improved contrast and color accuracy. Benefitting the imaging attributes, a Hyper Sonic Motor also affords quick and quiet autofocus performance as well as full-time manual focus override.