I have a Brownie 2a model B and use 120 film in it. It is really quite easy if you add a spacer between the 120 film and metal side. I made mine of wood. Using this spacer, the film rolls back onto another 120 roll and you don't have to re-spool 120 film onto the 620 spools like you have to with some other brownies. If you have any questions just email me and I could post some pictures of my set up or something.(posted 7734 days ago)Brandon