model Nikon F Mount CPU built-in E type, AF-S lens Focal Distance 8mm-15mm Maximum caliber ratio 1: 3.5-4.5 lens configuration 15 groups (3 ED lens, 2 aspherical lenses, with nanoclistal coat, fluorine coat) angle of view 180 ° 00'-175 00 00 '(FX format digital SLR camera) 180 ° 00'-110 ° 00' (DX format digital SLR camera) Focal Low Navy 8, 10, 12, 14, 15mm (DX index → about 11mm) Projecting system Originated square angle shadow method Zooming Rotation type by zoom ring Focus IF (Nikon Inner Pot) method, auto focus with ultrasonic motor, manual focus shooting distance scale ∞ ~ 0.16m The shortest shooting distance 0.16m (whole zoom area) Maximum shooting magnification 0.34 times Number of squeezed feathers 7 sheets (circular aperture) Aperture method Automatic aperture by electromagnetic aperture Maximum aperture ・ Focal length 8mm → F/3.5 ・ Focal distance 15mm → F/4.5 minimum aperture ・ Focal distance 8mm → F/22, focal length 15mm → f/29 Metering method Open Metrophol Filter frame Equipped on the rear of the lens Mount adapter FT1 suitable AF driven Dimensions 77.5mm (maximum diameter) x 83.0mm (from lens mount reference surface to lens tip) Mass about 485g Accessories ・ Walling lens cap LC-K102 ・ Back toy LF-4 ・ Bayonet hood HB-80 ・ Lens case CL-1218 Specifications and appearance may be changed without notice for improvement.