Leitz instructions motor-winder r4 camera user manual. Available to purchase for immediate download. Below is an extract from the manual converted to text for a quick impression on the content. Leitz instructions motor-winder r4 camera user manual1) Rapid winding lever. When the motor- winder is used, it is moved into the parked position along the camera. 2) Single-frame release 3) Series and single-frame release 4) Threaded bush for handgrip 5) Locking button for battery housing 6) Toggle screw for attaching the winder to the camera7) Push-button for a) rewind release b) double exposure 8) Selector for multiple exposures 9) Housing for rechargeable or ordinary batteries 10) Socket for electric release 11) Tripod bush. The tripod holder is screwed on through threaded bushes 4 +11.