If I tape the ends of two rolls of 120 film together in the dark, they will both fit on one Paterson reel. What could go wrong? They shouldn’t overlap or “crawl” as long as the taped seam is secure. I’ve done this with 135 (two rolls of 12) and not had a problem, but 135 is a better fit on the reel. My experience with the larger Paterson tank (that holds two 120 sized reels) was not favorable, so I’ve moved back to the small tank.
