The Leicavit M is a compact, manual quick-wind device, and intergrates into the lines of the camera body. Attaching the Leicavit M only increases the height of the camera by 9.1 mm, and only adds 5.2 oz (150 g) to the weight of the camera. It allows the film to be advanced quickly and comfortably without having to take the camera away from the eye.
This small and handy lever winder makes a significant contribution to any Leica MP, M7, 6, 4-P, 4-2 camera.