I had the great fortune yesterday to inherit a Hasselblad 503CW with multiple lenses, backs, and filters. I'm very excited about it, but there's one catch -- no manual. I'm used to a Bronica which is significantly different.

My first problem is not being able to figure out how to change backs. It's got a 220 back on it and I need to put the 120 on it. Can't be too difficult, but I'm stumped. I'd like to be able to shoot today. Anybody willing and able to walk me through this?

Thanks!

- CJ