Originally posted by iheiramo Ok, I've been missing M35/2.8 and there's one on sale and it's the first I've seen in Finland. The problem is that description says that it has sticky aperture. Price is only 30€ so condition is taken in to account, but as this is quite inexpensive lens the difference doesn't probably cover the cost of professional repair. I could probably ask for estimate for the price including service, but as they are selling it as is, it's probably going to be too much.
So, does anybody have experience with sticky aperture with M series? Is it fixable at home? Is the aperture mechanism easy to reach? I trust my self with opening and closing screws, but if glueing and/or alignement of lenses is needed it's going to be too much for me. I have adjusted infinity to some of my lenses and it would be nice to learn more basic maintenance works of the lenses, as it might come handy also in future.
I don't have any repair experience of sticky apertures yet but a helpful forum member recently sent me some instructions on how to fix the sticky aperture on a Vivitar zoom I have, so I think that will be my first try. Every lens is different and I understand that aperture leaves can be tricky to get back into position and you have to be very, very gentle with them.
I understand this is a common problem for this specific lens. I was lucky and my copy doesn't suffer from it. You might want to make an enquiry at some local repair places to see roughly how much they would charge for such work.