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.

Removing a Rolleikin 2,8 from a Rolleiflex 2.8 that does not have a counter knob. There is a home-built adapter consisting of a piece of cardboard and a bit of chopstick.

Removing a Rolleikin 2.8 Rolleiflex 2. 8, which do not have a button on the toolbar. One form of house is a piece of cardboard and a little 'stick.

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. . .