The precision to align the sensor doesn’t appear to be present. In any case, the camera body isn’t where the magic is, and old lenses can be fitted to new bodies in a crazy number of permutations these days. I only today picked up a Contax Zeiss 300 f4. It fits on my Canon now. I love my Contax but the cost of this sensor this would likely pay for a lot of film and processing. Let’s see when it launches.