I am getting my Mamiya M645J up and running little by little. I also have a full armament of Minolta sr/x equipment. Until I can afford some Sekor C lenses, has anybody eer heard of an adapter that would allow me to use my Minolta MD mount lenses on my Mamiya? I realize there may be some negative coverage issues with some of the lenses, but it may give me one or two more options in the mean time. I want to do more than my 80mm and 150mm Sekors can allow. Any ideas, links, etc. would be appreciated. Thank you all.