Nikon AF S NIKKOR 85mm f/1.8G Fixed Lens with Auto Focus for Nikon DSLR Cameras Fast aperture medium telephoto lens Internal Focus, Focal Length: 85 mm, Minimum Focus Range: 0.80 m Silent Wave Motor (SWM). Number of diaphragm blades:7 (rounded diaphragm opening) M/A focus mode switch Nikon Super Integrated Coating (SIC) 85mm Fixed Lens, Maximum Reproduction Ratio 0.12 x