[Cameramakers] New Magnetic Film holder design

[John Cremati]

Hi ,        I had weighed the 1/8 inch thick  x 1 inch wide  high energy magnetic tape and it will add  approximately 1 3/4 pounds to each  20x24 holder .  Add this to the  thin steel shims that would have to be used  complete the magnetic function ,  and the epoxy glue , I am sure  It  will be over 2 pounds per holder.... Also  add the 2 inch additional camera back and holder size (in each dimension ) to accommodate the tape is also additional weight...I am also not 100 percent convinced if the magnetic attraction will be enough to hold the two film holder  sections  together  when removing the  darkslide ect........... Any feelings or suggestions  on this?         I like the idea of a two piece film holder for ease in loading and unloading.  Maybe  some sort of a  pinned or clamped  compression style frame  should be considered.    John Cremati