Pentax ZX-50 35mm SLR Camera "fluid side mirror" Questions

...fluid can be used to remove old oil and grease from the winder gear, the cocking arm pivot, anf the latch pivot. A tiny amount of grease can be applied to the slow moving pivots and contact points ...

side of blades. Canon EOS cameras manufactured in the late 1980s to early 1990s have an internal foam bumper for the shutter curtain which deteriorates with time, breaking down into an oily black tar.

...side of the mirror box is not cocking the shutter . This is very repairable but unfortunately it requires fair amount stripping down of the camera to get to the fault and so you will have to take it ...