Installation of a (jury-rigged) Rolleikin 2.8 into a Rolleiflex 2.8F without a counting knob. The jury-rig is a piece of cardboard and a bit of chopstick. This video also shows the interlock mechanism in action.

The installation of a jury (with operations) Rolleikin 2. 8 in a Rolleiflex 2. 8F, without a command to tell. The jury platform is a piece of cardboard and a little 'stick. This video also shows the mechanical lock. . .