Some of Leica's digital cameras are based on a collaboration with Panasonic. This is notably the case for the more recent models in the Digilux, D-Lux, and V-Lux series. For these cameras, the camera shutter count is accessible via hidden menus, similar to the procedure applying to Panasonic Four Thirds (Leica Digilux 3), Panasonic LX-series (Leica D-Lux), and Panasonic FZ-series (Leica V-Lux) cameras. – Similarly, for the Leica M8 and M9, shot count information can be obtained by accessing hidden service menus, as described by Leicaphilia.