Originally posted by Douglas_of_Sweden Thanks Ratmagiclady, I will try lubrication, but hoped someone knew enough about this model to hint me where to put it...and where not to put it. What lubrication have you used? In the past I've tried a fine sewing machine oil, but it might be a bit to thin, doesn't stay put. Probalby some fine grease would be better?
Tripod socket is in place.
I've also thought that some part behind the bottom plate might have changed a bit in shape. There are some long moving metal piece there that may be voulnerable, but it is sitting behind a larger thicker metal plate that I would think would protect it. The dent was not large. But in any case, I would have to meter with the precision of 1/10 of a milimeter, and then I will need to know where to meter.
I've checked the repair handbook for the K2 and found no hints about this problem. It may be of course a separate problem with the shutter, but considering what great improvement I saw first from just removing the dent, I think I'm in the right region of the mechanics. Or am I?
Well, that's OK. Any dents may in fact be a red herring.... ie, not actually related to the problem.
If pieces aren't rubbing together, it doesn't matter how well-lubricated they are in those places anyway.
Here, by the way, is a site someone pointed me at some while back: they have a European outlet here:
Micro-Tools Europe (English)
As long as it doesn't get anywhere and has time for any volatiles to evaporate, sewing machine oil should function OK. In a pinch, A little Tri-flo on a bit of rag also does wonders, sometimes, but you don't want that near glass and probably not directly on any brass works: you'll want to let the most of what's in it evaporate and just put on the Teflon. (There are really much better products for this sort of thing, but Tri-Flo's a gal's best friend for some things: just keep the vapors away from any optics or anything, and the solvents away from any grease you want to remain in place: it *will* basically kill those.
A nice and neutral light white grease should also do OK for such clockwork kinds of things, where anything might bind. (Not much or it'll only attract gunk or whatever! )
Anyway, this site should be one with better products than I've ever been accustomed to use, anyway.
If that were an old Canon, (which wouldn't *quite* behave that way, but maybe close. ) the next suspect would involve something that can't be taken apart, so that's as far as I could help.