Nikon 1909 instruction manual Specifications

Specifications

Type of lens:	D-type AF Nikkor lens having built-in CPU and Nikon
	bayonet mount
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)
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 (∞ )
Aperture scale:	f/4– f/32 on both standard and aperture-direct-readout
	scales
Minimum aperture lock: Provided
Diaphragm:	Fully automatic

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.)
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.
	230.5mm
Weight:	Approx. 1440g (50.8 oz.) with tripod collar;
	approx. 1300g (45.9 oz.) for lens only

J

E

G

F

S

IT

Ck

Ch

17