Hi Carlos, Thanks for your pointers. I searched through some of my manuals and brochures too, for further information on the 4560 and found the bit about the viewfinder display option. So, I've now got it worked out - (as before but now completed): The 'little red button' on the adapter plate is the lock overide for removing the adapter if a 4560/135 back is in place. Without the back attached it does nothing. With the back placed in the adapter, the two side release buttons are locked until the red button is depressed. The slide on the film back cannot be opened until the back is in the adapter and the back cannot be removed from the adapter until the slide has been closed again. For the LCD display on the Magazin 135: Normal display is film speed and frame number. The +/- button changes the film speed. The Mode button cycles through the main menu and the '+' button changes the options: ISO/DIN: toggles the film speed format On/Off: is for the display of 'Slide', frame number and 'End' in the camera viewfinder display or not, as appropriate. This only 'flashes-up' for about one second in my 6008i because it uses the same LED characters as the aperture read-out in the left of the viewfinder. 'Error' flashes up if the last frame cannot be fully wound on and before it rewinds the film automatically. Run/Stop: RUN is normal single exposure per frame and STOP stops the motorwind giving multi-exposures. The number of multi exposures is shown on the LCD but the camera display still only shows the actual frame number when it flashes up. Auto/Turn: Auto is AUTOmatic run with automatic rewind and Turn is manual rewind from any point; reTURN. The film wind motor detects increased resistance at the end of the film and automatically starts to rewind. I have not worked out if, with a new film loaded, the first press of the shutter release winds the film on sufficiently to pass the fogged film leader or not. It takes 2 off LR44 1.5v alkaline button cells to power the LCD memory when the camera is switched off or the back is off the camera. Best wishes John --- Rollei List - Post to rollei_list@xxxxxxxxxxxxx - Subscribe at rollei_list-request@xxxxxxxxxxxxx with 'subscribe' in the subject field OR by logging into www.freelists.org - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with 'unsubscribe' in the subject field OR by logging into www.freelists.org - Online, searchable archives are available at //www.freelists.org/archives/rollei_list