Hi guys, 1st of all let me apologize for bringing this one up...
I have an MX and i have the mirror locking up problem too. The thing is, it works ok with a K 50mm/f1.4, but when i put a K 28mm/f3.5, every time i advance the film the mirror goes up and stays there.
Taking off the lens doesnt work either, and i have to take the lens off and fire the shutter, and THEN it comes back down...
Id really like to know what can be causing this, before i open the camera... thing is im on holidays, and dont have any tools or anything, and it really bothers me that it happens with one lens and not the other...
Both lenses look ok, nothing broken, nothing loose... If anything the 50mm is more beat up...
I'd really apreciate if anyone knows what might be going on, and how to fix it...
Thanks in advance!!