> Other than the program mode Ricohs, the only lens I know of that > cannot be used on newer bodies is the Vivitar S1 70-200 f3.5, > which has an extra long flange near the lever that connects to > the lens aperture. That flange hits the power zoom contacts in > newer bodies.
It's not just the first-generation VS1 70-210/3.5 that has that flange - it is found in several of the other early K-mount VS1 lenses from the 70's. However, it is not difficult to remove it, and I have done so on a 70-210/3.5 (the 67mm filter threads version 1), on a 24-48/3.8, on a 90-180/4.5 macro, and on two different 35-85/2.8's. As far as I know, the earliest Pentax body that had a problem with the flange is the LX (where the flange can just graze the mirror box baffle). Fred
