In article
>In article <5eav5i$jtr@newsstand.cit.cornell.edu>,
>Bob Neuman
>>So, I guess there were 5 versions of the compact 50mm f1.8 Nikkor:
>>E (ugly), E (pretty), AISn (plastic), AISn (metal), AF (hmmm, three
>>versions of this: thin-focus-ring, rubber-ring, and "probable"-D) -
>>so, I guess that makes 7 versions total + the AI and AIS versions
>>of the larger, metal-barreled 50mm f1.8 - making 9 versions of
>>the Nikkor 50mm f1.8....!!! ;-)
>What is the minimum focus distance of the AISn (metal) version
>that you mention? I think that you might actually have a 50/1.8 "S"
>(minimum focus distance about 0.3 m instead of the usual 0.4).
>This lens was marketed only in Japan although like anything else,
>a few of them made it over here. I'm not sure if it's the same
>optics as the regular 50/1.8.
0.45 m (1.5') for the compact (but metal-barreled) version, and it
has the same optics as the E/AISn/AF (and is multicoated).
>I'm also not sure if there was a metal barrelled 50/1.8 AI (non AI-S),
>though any of the reference books would answer quickly. But I think
>the 50/2.0 was made in an AI version and the 50/1.8 started out as AIS.
Uh-uh (hey, folks, don't you know that I know what I am talking about,
YET?! ;-) - I have an AI (non-AIS) 50mm f1.8, so I believe it existed...;-)
Hope This Helps