Very recently I succeeded in purchasing a Ilex Caltar 215mm f6.3 lens in an Acme No. 3 shutter at a rather cheap price ($81 USD) since the shutter does not function. It was one of those accidental finds (thanks to a Cambo lens board) but on researching some more details of this lens I suspect it may be of some little historic interest (at least in the academic sense, that is.)
Please correct me if this is not correct but this lens is an early mid 1960s Tessar computer designed lens made in the USA. Given my albeit limited knowledge of the technical history of this period (if I can call something as recent as the 1960s history:-) my interest begins to grow and curiosity pushes me into asking for more details from those who may have something more to say.
In this lens I can sense the kernel of a very interesting story which may occupy at least a half chapter of a book on lens and camera designs of the last half of the 20th century of which some writer may write so it may be worth recording a few more details from those who know more???
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