Additional information:
The Nikon Nikkor 20 mm f/ 4 is an ultra wide-angle prime lens for 35 mm Nikon F SLR cameras.
Besides an excellent optical quality, the Nikon Nikkor 20 mm f/ 4 has a rather compact size.
It came in non-Ai (K) and Ai versions (since 1977). Later on, it was succeeded by the Nikkor 20 mm f/ 3.5 lens.
Links to online resources: Posted by: Nik_SSG Date of publication: 23.07.2011
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