Originally posted by patk fill the gap between zero and the m9's $7k range for say, $2800-$3500
I don't know if you already played with an M9? Or an M8 which has become rather affordable now.
It's a masterpiece of fine mechanical precision and the precision of focus (although manual) is stunning. Very sharp images. Only feasible with precision calibration of each and every body.
I've seen a report where Leica takes test shots through the viewfinder (of test targets at several different distances) until the focus calibration is really perfect. The rangefinder viewfinder with its mechanical coupling to the focus helix is delicate.
I doubt that it could be done in a cheap factory and if you start to pay serious workers, I doubt that it can be done for significantly less than $2500. Which is 50% of an original Leica and if you charge 50% for a copy cat, Leica will end up winning.
To replace the delicate mechanical rangefinder M-mount solution with an all electronic solution (as has now become possible) would be the path to follow. Which is very close to a FF SLD/EVIL roadmap though ...
Actually, if I were consulting Leica, I'd recommend them to do this: Temporarily maintain the mechanical M-mount rangefinder VF but add an electronic VF (hires OLED) plus fast contrast AF. And make the eyepiece switch between optical and EVF.