Here's the background; I still LOVE Verichrome-Pan B&W film, especially by today's film standards. It's loaded with silver & has a great range of Grey-Tones, even without using the Zone System. Verichrome-Pan B&W film is still available on eBay. But 620 is in much greater supply, than 120 film is & it's priced much lower. I also know in order to still use 620 cameras, people routinely re-spool, 120 film on to 620 spools, due to the smaller core of the 620 spool. So this tells me the film dimensions are the same. I WILL NOT RE-SPOOL ANY FILM ! So, can I use 620 film in a 120 camera, as it is from Kodak ? This will be used in a Mamiya RZ camera, not that this matters, much. I'm sorry if this question has been asked before.