Specifications:

• Focal length/Aperture: 105mm f/2.5
• Lens construction: 5 elements in 4 groups
• Picture angle: 23° 20'
• Diaphragm: Automatic
• Maximum Reproduction ratio: 1:7.7
• Aperture scale: f/2.5- f/22 on both standard and aperture-direct-readout scales
• Exposure measurement: Via full aperture method with Ai cameras; via stop-down method with non-Ai cameras.
• Distance scale: Graduated in meters and feet from from 1m (3 ft.) to infinity (oo)
• Weight: 435g
• Dimensions: 64mm dia. x 77.5mm long (overall); 39.5mm extension from lens flange
• Filters: 52mm front screw-in
• Front lens cap: Snap-On
• Lens hood: Built-in telescopic type
• Lens case: CL-32S hard leatherette, No.62 soft pouch, or CP-9 plastic

This is one of the most famed portrait lens produced by Nikon. Its legendary status is much derived from its simply design (Gauss type) of 5 elements in 4 groups producing amazing sharpness and creamy smooth bokeh.