Nikon 1909 Instruction Manual - Page 17
Specifications - nikkor
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Specifications Type of lens: D-type AF Nikkor lens having built-in CPU and Nikon bayonet mount J Focal length: 300mm Maximum aperture: f/4 Lens construction: 10 elements in 6 groups (2 ED elements) Picture angle: 8°10´ (6°40´ with IX240 system cameras, 5°20´ with Nikon Digital Camera D1) E Distance information: Output to camera body Focusing: Nikon Internal Focusing (IF) system (utilizing an internal Silent Wave Motor); manually via separate focus ring Shooting distance scale: Graduated in meters and feet from 1.45m (5 ft.) to infinity (∞) G Aperture scale: f/4- f/32 on both standard and aperture-direct-readout scales Minimum aperture lock: Provided Diaphragm: Fully automatic F Exposure measurement: Via full-aperture method with AI cameras or cameras with CPU interface system; via stop-down method for other cameras Focus limit switch: Provided; two ranges available: FULL (infinity to 1.45m [4.8 ft.]) or ∞ - 3m (9.8 ft.) S Tripod mounting: Detachable tripod mounting collar; rotatable through 360°, indices every 90° Attachment size: 77mm (P = 0.75mm) Dimensions: Approx. 90mm dia. x 222.5mm extension from the camera's lens mounting flange; overall length is approx. IT 230.5mm Weight: Approx. 1440g (50.8 oz.) with tripod collar; approx. 1300g (45.9 oz.) for lens only Ck Ch 17
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