I put an Arca plate on the bottom of my Rolleifix. It's a Markin plate, designed for a DSLR. It has a notch between the two upward pointing tabs that stop camera rotation. The Rolleifix quick release lever can rotate freely because of this notch.

So going on and off the tripod uses the Arca plate. To change film, the camera comes off the Rolleifix.

8302765412_575107d1b8_z.jpg