[jaapv]

I think he means that on autofocus on a digital camera can be adjusted in electronics, whereas a rangefinder is a separate mechanical system, which will alway operate discretely from the sensor and electronics. More fine tuning and more fiddly all in all.I agree with what Mark Norton is always saying, that it is on the limit of what is feasable on an mechanical-electronic interface, but I find, that once set up correctly, it works excellently.