On ebay...... an EXA II , but it has a Compur Leaf shutter, and is described as an unusual combination, ....... more like a Frankenstein creation by a home mechanic. The seller may even believe that this was in some way original. Done to give full flash sync?
so how do you see thru the viewfinder? with the back open you can see through to the lens? I doubt this would work...would it?
It would work......but!......you set the compur to b, and focus, then set the compur to the speed required, and then set the camera to b, press the body release to do so, and then you take the shot with the compur.......a total mess.....
It could be a total conversion, with the focal blinds removed, and reflex viewing disabled, but the transport left working!
The easiest way would be to leave the compur on B, and use the main shutter!
Seriously, it must have been a requirement for flash sync as I first suggested............maybe a lab user, or engineering shots with a ring flash etc.