I have a Minolta XE1 and years ago I was going to use it again and could only see half the image. Upon inspection the silver had corroded so much as to block half the viewfinder in a straight line. You can get them re silvered but it costs more than the camera..I bought another camera for parts and swopped it out and as the parts camera was the black version I swopped the covers as well. I now have a working camera again. I was amazed how quickly it went and that was due to rotten foam which etched into the mirror coating.
Yes, you can get some nasty by-products when that foam dies. The more common problem is just having a camera completely filled with tiny, sticky pieces of foam dust. Never fun to clean up.
I have a Minolta XE1 and years ago I was going to use it again and could only see half the image. Upon inspection the silver had corroded so much as to block half the viewfinder in a straight line. You can get them re silvered but it costs more than the camera..I bought another camera for parts and swopped it out and as the parts camera was the black version I swopped the covers as well. I now have a working camera again. I was amazed how quickly it went and that was due to rotten foam which etched into the mirror coating.
Yes, you can get some nasty by-products when that foam dies. The more common problem is just having a camera completely filled with tiny, sticky pieces of foam dust. Never fun to clean up.