[dave9t5]

4:3 was (and still is) also common in medium format, not only compacts. Imho, it often looks nicer for portrait oriented images.

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...

 

Instead of mirrors and prisms, as most rangefinders do, they use twin imaging sensors that overlay their images to produce the same dual image effect in the viewfinder.  The first sensor is the main sensor, the second sensor is a small one where the black dot near the hand grip is.