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Author Message   Chiccolini Tinkerer Username: Chiccolini Post Number: 65 Registered: 06-2009 Rating: N/A Votes: 0 Posted on Tuesday, November 24, 2009 - 12:49 pm:    Oh, yes. Those were called S.C.A.F. for Self Contained Auto Focus or something like that. A regular zoom lens but with an autofocus mechanism built into a "hump" on the side of the lens. I recall the advertisement for them. They were intended for people who wanted to try AF but only had a non-AF camera. Vivitar made two of these if I recall correctly. A 28-70mm and the 75-205mm. Believe it or not I have a "generic" version of the lens made by Starblitz and it works but the cheap plastic gears "slip" so it doesn't do anything. Truly, I don't see how this Starblitz could have worked even when it was new the mechanism is so crappy.