If the manufacturer doesn't make right on this I will soon be posting pictures of the workmanship, showing how easily I can slide three sheets of film into one side of a holder and how the rib lock is so far off after having sent my camera back to them to build the holders to fit. I may even post a video on You Tube showing the slop in the septum to film rail as I load three sheets of film. These are some of the most expensive film holders on the market and I expect better service than this. Robert