Hi LF Forum,
I have just bought a Sinar Norma 5 x 4 camera and a 405 polaroid back. The 545 pro polaroid back fits into the back of the camera where a normal film holder is placed. However I can not work out where to put the 405 back and I have tried to attached it to camera without the ground glass but I cannot make it stay put and I have also tried putting the back in the same place as the 545 but it does not seem to fit and it seems like there are gaps. Does anyone have any tips on attaching the polaroid back or does any one know where I can get a manual for the 405 back? I also got three light traps with the back, are these just spare parts?