A few notes about my vision. I probably went too hyperbolic about how bad my eyes are. Actually, not that bad. I mean I have no cataracts or eye disease, just a guy who wears tri-focal glasses. Probably "average vision" for a 70 year old. I think my trouble is that the glasses are constantly making it hard to look through eyecup viewers. I don't really like taking them on and off to take a picture. And if off, I would need to have a +3 diopter to see a focus screen sharply.
Cameras. I really don't think I want a 6 x 4.5 portrait normal format. I think if I am going for one last try at this I want to get either 6x6 or 6x7. Which means a heavier SLR box, A Mamiya 6, or another try at TLR. Being able to fit optional lenses is always a plus, but I could also probably live with a fixed normal lense. I don't think those Mamiya TLRs are my cup of tea. I remember how darn heavy it was. So far I have not seen a Hassleblad I can afford, but I am looking. And, I haven't actually discovered the weight of it yet. No one mentioned a Rollei, I don't think? Are there super bright focus screens available for those?