hello I have the opportunity to purchase a Kodak triplet lens I would like to know if its apochromatic vs the bad achro... I found out how to date such a lens on this site using C A M E R O S I T Y c=1 a=2 the lens cell says re712 r=5 e=4 so 1954 I would guess.
the Lens says: eastman Kodak Co. 805700 Type I telephoto Lens 36" 912mm 9 x 18 RE712
its about 6.25" ID and they say its a triplet could it be four elements?
Please help me Identify and price Thank You Jeremy Jensen
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