Nikon made a its first 45mm f/2.8 GN (guide number) lens from 1968-1977.
It was among Nikons cheapest lenses and had a special feature which provided automatic exposure with flashbulbs. It had an almost identical, or possibly identical, Tessar optical formula.
45mm f/2.8 GN (Guide Number, 1968-1977)
Nikon made a its first 45mm f/2.8 GN (guide number) lens from 1968-1977.
It was among Nikons cheapest lenses and had a special feature which provided automatic exposure with flashbulbs. It had an almost identical, or possibly identical, Tessar optical formula.
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