Summary
This camera needs a special work around to use in live view mode. Instructions can be found below
In-Depth
Do not open the shutter on the camera prior to opening the Live Preview window. Doing so will generate errors on the digital back after closing the Live Preview window. The recommended procedure for using Live Preview is to first open the Live Preview window then open the shutter on the camera, use Live Preview as desired, when done close the shutter on the camera, and close the Live Preview window.
Mamiya 645 AFD Configuration
Be sure to have the shutter release cable threaded into the shutter release button and locked on the body and the Shutter Speed is set to Bulb.
Focus Switch set to Manual
AE Mode dial set to Manual
Mamiya RZ67 Configuration
1. Launch Live Preview from within Capture One
2. Thread the cable release.
3. Make a timed exposure by sliding the "T" lever covering the " N", normal position.
4. Depress the shutter release.
5. Press Play.
6. When ready to create exposure close the Live Preview window and slide the Lens Lever to the Normal position.