Product Description
GN Auto NIKKOR 45mm f/2.8
1. Features and Uses
GN Auto NIKKOR with Nikon F mount, can be interchangeably used with other NIKKOR lenses.
The lens is provided with the guide-number coupler which permits coupling its aperture ring to the focusing ring, so that in flash light photography once the guide-number to be used is set, the aperture (f-number) is automatically adjusted to the focus distance, that is, there is no need to reset the aperture each time the distance changes, thus simplifying the picture taking procedures with flash light to a great extent.
Covering the widest picture angle as a normal lens, the GN Auto NIKKOR is suited for landscape and interior photography.
The extraordinary flat lens construction, with a larger free working distance, will offer convenience in taking close-ups. Picture quality of the lens in close-up photography is also excellent.
The aperture which can be stopped down to f/32 may be advantageous when the lens is used in an extreme brightness, such as on a skiing ground.
The corners of the aperture diaphragm opening being quite rounded at f/8, the most frequently used aperture, so that radiating flashes of reflecting image will be minimized.
The excellent character of out-of-focus image will also satisfy the user of the lens.
2. Specifications
Focal length: 45mm
Maximum aperture ratio: 1:2.8
Minimum aperture ratio: 1:32
Picture angle: 50°
Aperture diaphragm: Fully automatic
Type of mount: Nikon F bayonet mount
Exposure meter coupling range: f/2.8-f/32 (with Photomic FTN Finder) f/2.8-f/22 (with Photomic-TN Finder and Nikkormat FTx)
Distance scale: Infinity to 0.8m and to 3 ft
Guide-numbers: Graduated both for meters: 10, 13, 16, 20, 25, 32, 40, 50, 63,80 and for feet: 32, 40, 50, 63, 80, 100, 125, 160, 200, 250
Attachment size: 52mm (p=0.75mm)
Weight: 135g
Dimensions: 64mm dia. x 32mm long (20mm from the lens attaching base surface)
Find a vintage GN Auto Nikkor 45mm f/2.8 on eBay: https://ebay.us/STn9r0
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