Frank, have you tried cleaning the electrical contacts, both on camera and the lens? [The aperture value is transmitted strictly via digital protocol].
Servus, Alin Frank wrote: FW> recently my FA* 24mm is behaving strangely on my MZ-5N. At the largest aperture FW> (aperture priority mode) the body says f2.5 then jumps to f2.0, then back FW> again etc. FW> Anybody notice the same problem, maybe wear on the aperture coupler? FW> What could I do do get rid of this problem? FW> Frank
