Nikon F3 Erratic Shutter Speed Times
i got a good deal on a Nikon F3HP, all speeds seem to work fine or at least sound like they are within spec. the speeds below 60 are strange though, from what i was able to test with a spot watch on my phone and my eyes and ears i get about 9s to 2min 58s of exposure time in the 8s exposure mode. these remain sporadic even in auto mode.
i tested all of these at a normal shooting shutter count (always above 1) i tested different ASA numbers, exposure compensation values even different apertures (set at the aperture following ring)
im lost here, i do know my way around repairing stuff but this is very strange and not something like a sticky shutter (i tried lightly hitting the camera while it was above its set exposure time to "unstuck" the shutter, sadly that wasn't the issue …)