Jens, I think I exercised it 1000 times. Didn't make a difference. Off to Pentax Sweden with the M28/2.8 and yes, they could fix it for 788 SEK, that's about 110 USD. I think you could have one on ebay for less. the question is however, how prone old M-lenses are for this kind of disease. I have at least two with SAS. Peter
M 35/2.8 is famous for that. Once the job is done on this lens it is imperative for the repairman to use an "oil barrier" just outside the blades or the problem will come back.
Andre
