As usual a manufacturer's website is pretty low on information.
What I am trying to find out is whether I will need a seperate ground glass screen for the hasselblad back plate sinar made. This plate takes a single A12 back and has a crank lever on it.
As far as I have been advised is that I just swap out the full back plate once focussed.
I'm looking forward to getting the sinar and the super angulon is itching for an outing :-D