Is there something about the 2.8/35 mm? Ralf
Yes. It is a well known fact (only for some of us I guess, but do a search in the archive to see who are the enlighted ones) that this particular lenses is VERY prone to oil getting on the blades. I've had 3 of these lenses and all had this problem. At the camera shop they have seen many M35/2.8 with this problem. The solution is cleaning the blade and add an "oil barrier" or the problem will come back fast. The A lens aperture mechanism has been redesigned to avoid this problem.
Andre
