Quote:4:3 was (and still is) also common in medium format, not only compacts. Imho, it often looks nicer for portrait oriented images.I know of no 4:3 in medium format that is actually used other than in some oddity? 6x4.5 (oa Mamiya, Bronica), 6x6 (oa Hasselblad), 6x7 (Pentax), 6x9 (like my Agfa Record and other folders), 6x17 (Fuji panorama).
But it's true that a 32x24mm sensor is not strictly speaking a "full frame" 35mm sensor.
I'm curious about the "digital rangefinder" instead of a mechanical one. Sadly, they don't give a lot of information about how it works...
The main ones are 6x4.5, 6x6 and 6x9 (which frame numbers are printed on the back of 120 film).
I guess 4:3 is not common in medium format.