Since others are giving their FD timelines, I'll add mine. I bought a T70 new in 1986 and used it for years, unfortunately without really appreciating what I was doing, photographically, that is, I used it as a snapshot machine. I'd have probably been better off with an AE-1P or an A1, but young me was fascinated but the looks of the T70 with its autowinder. Skip forward many years and I decided to get back to basics and bought an A1 which made me slow down a bit, and stop the spray and pray methods of my youth. Eventually I found an F1N for a good price and fell in love, leading me to be hard pressed to turn up a good priced F1. I think I'd like the EF if I ever used one, after all, it's basically a lightweight F1. I found a broken EF year ago, but haven't gotten around to having it repaired, and I probably never will at this point, time, money and other shooting opportunities being what they are.