<p>I'm rebuilding Electro 35 GS. Long story. Everything came apart, even shutter.<br> Question about the way shutter works. Without battery, does it open fully?<br> In my case, if solenoid is activated then shutter properly lock wide open and then released by deactivating solenoid. However, without battery, it looks like it is starting to close before fully open. It gets probably to 80-90% open. There still some teeth visible on the aperture periphery, forming fat star. I do not believe that this will affect image in any way. But I'm really curious if this is the normal shutter behavior without battery.<br> <strong>Can somebody please test it and confirm?</strong><br> <br />By the way, I read many posts about sticky Copal shutters and most recommend to flood it with naphtha. Not the case, at least in my case, every single shutter and aperture blade was dry and clean. But chain of levers, from winding shaft and trigger all the way to solenoid, was slow. Does not appear to be dirty or gummy. I guess oxidation on the shafts. Anyway, after taking it apart, cleaning inner barrels of levers, everything appeared to become snappy, much better than before. So, scrutinizing shutter I have discovered that it does not open fully without active solenoid. Makes sense as there is no timing mechanism, just inertia of levers and blades dictates max possible speed. I just want to confirm that it is true and I do not make some stupid mistake before putting whole thing together and soldering back hundred of wires. (They don't build it like this anymore and this is a good thing!)<br> I did not use any oil on the levers on anywhere else as this most likely will limit max shutter speed. Shutter reassembled completely dry.<br> Thank you so much for any help!</p> <p> </p>
