Originally posted by AquaDome Kodak Medalist, Zeiss Ikonta, Agfa Isolette, Moskva, Iskra...
Depends on how far back in time you want to go and if it really needs to be a rangefinder.
Cool cameras! I have the Kodak Medalist II (camerosity EO), the latest Moscova 5, and the Zeiss Super Ikonta 531 from the '50s.
The Kodak is spectacular. The RF is the best of the bunch. The lens is a coated 105mm, if memory serves. The RF is the easiest to use of any MF RF I have used. That lens is fantastic. Maybe the best Kodak ever made. The frame is 6x9. The film is held flat. The thing is heavy and rigid. However the lens retracts a little. There is a sheet film adapter that fits on the back. I have the adapter, but never used it because I don't have a development tank for sheet film. I adapted mine for 120 size spools, so I would not have to respool to 620 spools. The Medalist I was the WW II photo journalist's camera. The II model has only an incremental improvements.
The Moskva has a squinty RF/VF, impossible with my glasses. It's 6x9 with an option to shoot 6x6. The lens is coated(many are not). The front standard was finicky and took some work to get it to function properly. That is a common complaint about these cameras. The lens is pretty good, but not as good as the Zeiss SI or the Kodak. I have made nice 2' x 3' enlargements from it!
The Zeiss Super Ikonta, I just posted about. I have the 531, 6x4.5 model. It is the only one I have used since I went digital. It is an excellent medium format camera that you can put in your pocket! My little Sekonic 308 meter is over half the size of the camera. I put my little Voigtlander meter on a string when I takeout this baby.