Hi folks, I have a mamiya 6 I bought from Japan and paid a fair bit taxes to get to the uk. There was a problem with the film advance lever so sent it off to be repaired, but it's come back with a note saying the light curtain lever is cracked and I can't turn it. I'm sure it worked before I sent it off, but it was sent from one repair shop to another, as the first place couldn't repair the film advance lever! Does anyone know if there's a way around this if I unscrew the light curtain lever? I don't want to send it off again and returning it to Japan will mean I I'll lose rather a lot of money. Any suggestions appreciated!