Nikon AF-S Nikkor 20mm F/1.8G ED

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model Nikon F mount CPU built-in G type, AF-S lens Focal Distance 20mm Maximum caliber ratio: 1: 1.8 lens configuration 13 11 groups (2 ED lenses, 2 aspherical lenses, with nanocli stal coats) angle of view 94 ° (35mm square single -lens reflex camera, digital SLR camera in FX format) 70 ° (DX format digital SLR camera) Shooting distance information Output shooting distance information to the camera Focus RF (rear focus) method, autofocus with ultrasonic motor, manual focus shooting distance scale ∞ ~ 0.2m The shortest shooting distance 0.2m Maximum shooting magnification 1/4.3 times Number of squeezed feathers 7 sheets (circular aperture) Aperture method Automatic squeezing Maximum aperture f/1.8 minimum aperture f/16 Metering method Open Metrophol Attachment size (filter size) 77mm (p = 0.75mm) Mount adapter FT1 suitable AF driven Dimensions about 82.5mm (maximum diameter) x 80.5mm (from lens mount reference surface to lens tip) Mass about 355g Show more