I have just picked up a Sinar Hy6 and the eMotion 75 back for it. It should be a 75LV, as the LCD goes right to the edge of the opening in the case.
It looks like some things have changed a bit since I had an eMotion 54LV on a Contax 645 a few years back, and I am wondering if there are other Sinar users here who would be willing to discuss software and workflow, and perhaps other issues.
Btw, it looks like the previous user never set up the back properly, as the spacer was not inserted, and the back/camera back-focuses furiously. I will get it inserted and try again, but unfortunately I left it at work.
Thanks in advance for any help.