Fact and reality of these vintage shutters. Consider this Graphic (Re branded Compur) shutter would be about 80 years new, to expect any mechanical device to be properly and fully functional after all those decades without any service or proper care would be absurd. Know the 203mm f7.7 Ektar is an excellent lens in many ways with no modern equal. Knowing and understanding this, the way to address this is to sent the shutter/lens to a properly qualified individual to be Cleaned/Lubed/Adjusted as needed. The solvent bath could have made the problems with the shutter worst as the solvent can and will float around the decades old Gooo all over the shutter innards then leaving a film and their residual Goo in places that is no good at all.
As for shutter interchangeability, yes the lens cells can fit into a# 1 shutter (Compur, Copal, Prontor and ..) long as the original lens cell spacing is matched to within 0.001" of the old-vs-replacement shutter. Any replacement shutter can easily have the same "Fubar" shutter speed problems as the current Graphic-Compur shutter. This points again to the reality of getting a know good shutter by testing before ownership, or sending the shutter out for proper CLA which is a wise investment into any lens to be used on a view camera and produce predicable results. Another trade off with these older Graphic-Compur shutters -vs- modern-new, the modern shutters do not have a round iris. This might be important of out of focus and into out of focus rendition is important to your image making.
The flash sync socket is a Kodak bayonet, mostly rare today as there was a time when Kodak wanted to offer an alternative to the Prontor flash sync socket. The Kodak bayonet works good, in some ways too good as the flash sync cable can yank down the entire camera outfit if the sync cable is tripped on due to the positive locking of the connector's bayonet. This is what the the Kodak bayonet cable looks like after it has been modified for a wireless flash sync.
Yes, this Graphic shutter works good as it has been CLA_ed and the total cost was not a bargain but a very GOOD value for what this lens does.
If this is your first view camera lens, consider purchasing a modern Plasmat from any of the big four (Rodenstock, Nikkor, Schneider, Fujinon) from a dealer that offers warranty and right of trial and return. This can go a ways to ending up with a lens and shutter that functions properly.
Bernice
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