I have the older 80-200 2.8 all metal "drainpipe" from 1989 (which I just found out recently is perfect for IR photography!), and the old 28-70 2.8 ~1993 all metal as well. The AF switch just broke on the 28-70 so I might be taking it apart or getting it fixed locally soon, but the 80-200 was fixed last year after I bought it and is a great lens!
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