I have a C220 and while I think it's a nice camera I'd prefer a split image focus screen. Reading a few websites it seems the C220 is kinda stuck with the screen it has, unless I'm not reading the info correctly. If I'm reading incorrectly, can anyone tell me what I could do easily by myself to install a split image screen? Or do I have to find a different Mamiya TLR body so I have the screen I want? I like the ability to switch out lenses so I'd prefer to stay with the Mamiya TLRs.