Stone: I have MOD54, it's ok for four sheets, not for six, at least for an old fumble-fingered fart such as I. I have more luck with a Nikor tank or even with the taco method. I also have an FR POS tank. not pretty… Don't even think of using a MOD holder for the pack film, it is the same thickness as 120 film, it won't work. good luck

m