I have a very nice condition ESII that I have run film through with good results.
Yesterday I took it out of the cupboard after not using it for about a year and it still seemed to work fine. Testing it showed that its shutter speeds compared favorably with my DSLR at the same aperture and focal length settings. The only thing is, I noticed that at slow shutter speeds (eg. 1/2 second) the shutter closed as soon as I released the shutter button - whereas if I held it down, the shutter stayed open for the full 1/2 second.
I've never noticed this before - and it's possible that its always done this as it would be hard to notice this at faster shutter speeds - eg 1/125 second.
Does anyone know if this is normal behaviour for the ESII and similar old cameras?
In any event, I've loaded a partially (actually mostly) exposed film, so I guess I'll know soon enough if there is a problem!