Now I've done it. ANOTHER Camera! Been half hankering after a 645. I love the image quality of my old Yashica 635 but want to try using a prism finder equipped 645 out in the field. Just landed a Mamiya 645J with both 55m and 80mm lenses and metered prism (CDS so uncoupled) for £150. I think it's an OK deal (and I get to collect so OT doesn't see it arrive and I can avoid the awkward questions, hee hee). Haven't got it yet, so hope its OK. I know its the "bare" model with only 500 shutter and no interchangeable back, but don't think that's going to be a problem for me. Anybody any tips?