I can't seem to find any around. I really need a -2 or -3 for my nearsightedness (word??). I don't like using my glasses Still have a Nikon and few lenses that I would dump if I could find a solution to the diopter problem.
There are a couple of aftermarket companies that make them for digicrud, you can try searching for them or sleazebay for one. Possibly try zuiko.com and ask there. The alternative is to buy an OM-3 or 4 they have adjustable correction built in.