You can always rent a Leica M-Monochrom from LensRentals. In stock now... http://www.lensrentals.com/rent/leica/cameras/leica-m-monochrom http://www.lensrental

You can always rent a Leica M-Monochrom from LensRentals. In stock now... http://www.lensrentals.com/rent/leica/cameras/leica-m-monochrom http://www.lensrentals.com/rent/leica/cameras/leica-m-monoch... They don't do Mamiya, but they do rent the medium format Pentax 645D. They're a very good company to deal with.