I have 2 Sinar m and a week ago I buyed a Phase One IQ160. I have a Sinar/Mamiya-Adapter. I tested the combo yesterday with flashlight and it works fine. The Sinar m has the same mount as the sinar p3, this is the 100 mm x 100 mm plate.
You sync the IQ-Back with the flash sync cable on the sinar m. I am waiting for a wake up cable, so at the moment I have to press the release button of the sinar m two times.
The big advantage of the sinar m is:
- it has a live view button that opens the shutter and the aperture in only one operation. Then you start live view on the IQ-Back.
- you have no electronic box dangling from the sinar p3 like on the sinar/rodenstock eShutter
- you don't have to open/close the aperture and shutter for live view with mouseklicks on the laptop or with the iPhone like on the sinar/rodenstock eShutter
- for changing from landscape to portrait position you turn the sinar m on the the sinar p3 and the back stays at the sinar m, so no dust can get in
One disadvantage:
- the back is 9 mm back from the original position of the sensor of the sinarback, so you have not the right tilt/swing axis
- but on all other view cameras you have the same problem