Nikon 2171, Nikkor ED 400mm f/2.8 IF instruction manual Specifications

SPECIFICATIONS

Focal length: 400mm

Maximum aperture: f/2.8

Lens construction: 8 elements in 6 groups (plus dustproof glass plate built into front)

Picture angle: 6° 10'

Distance scale: Graduated in meters and feet from 4m (15 ft.) to infinity (°°)

Aperture scale: f/2.8 ~ f/22 on both standard and aperture-direct-readout scales

Diaphragm: Fully automatic

Exposure measurement: Via full-aperture method; meter coupling ridge provided for AI cameras and meter coupling shoe for non-AI cameras

Focusing: Nikon Internal Focusing (IF) system

Infrared focusing index: Provided

Tripod mounting: Built-in tripod mounting collar rotatable through 360°

Lens hood: Built-in telescopic screw-out type

Extension lens hood: Provided

Filters: Slip-in type glass filter holder accepts 52mm dia. screw-in filters; gelatine filter holder accepts gelatine filters

Mount: Nikon bayonet mount

Dimensions: Approx. 163mm dia. x 378.5mm extension from flange; approx. 386.5mm long (overall)

Weight: Approx. 5150g

Accessories

Slip-on leatherette front lens cap Rear lens cap LF-1 52mm-dia. screw-in ultraviolet

filter L37C

Gelatine slip-in filter holder Extension lens hood HE-3 Shoulder strap Aluminum Trunk CT-400

52mm-dia. screw-in filters Soft lens pouch No. 59 Teleconverter TC-201 Teleconverter TC-301 Teleconverter TC-14B

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