Hi all, I'm trying my hand at medium format 6x7 shooting using a second-hand Mamiya RB67 with a 220 back. My EP1 doubles as my light meter Just loaded the first roll through - seems to work fine but I've got a couple of quick queries - 1. Is this the correct sequence - wind the film, remove the slide, cock the shutter, shoot. At this point a red indicator drops into view on the right of the film-back, I can't cock the shutter again until I move the tiny little slide on top of the back. Is that right ? Seems to work but wanted to make sure I wasn't missing something. 2. The counter stopped at '10' on the back and I just ended up winding the film onto the spool figuring that was the end of it. Then I had a poke around online and read I should get about 20 shots on 220 film - what could cause the counter to stop at '10' ? Is it related to me not following the correct winding sequence ? Other than that I'm really enjoying using it - I'll get this roll developed and see how they turn out before loading another one. Cheers, Raj.