Nikon 28mm History and Variants
Non-Ai Nikkor 28mm f/2.8
7 elements in 7 groups, f/2.8 - f/22, 0.3m to infinity
Nikkor 28 mm f/2.8 Ai (s/n from 430001 - )
7 elements in 7 groups, f/2.8 - f/22, 0.3m to infinity
Nikkor 28mm f/2.8 Ais (s/n from 635001 - )
8 elements in 8 groups, f/2.8 - f/22, 0.2m to infinity
(Nikkor) Nikon Series E 28mm f/2.8 (Ais fit)
5 elements in 5 groups, f/2.8 - f/22, 0.3m to infinity
AF Nikkor 28mm f/2.8
5 elements in 5 groups, f/2.8 to f/22, 0.3m to infinity
AF Nikkor 28mm f/2.8D
6 elements in 6 groups, f/2.8 to f/22, 0.25m to infinity
AF Nikkor 28mm F1.8G
11 elements in 9 groups, f/1.8 to f16, 0.25 to infinity
AF Nikkor 28mm f1.4E
14 elements in 11 groups, f1.4 to f16, 0.28m to infinity
