Live preview on a M9 is not possible as it uses CCD sensor. My understanding is live preview requires CMOS. I don't think Leica will alter the hot selling M9 just to please some former R users who want to use their R lenses. But what I don't understand is why Leica wouldn't either license out the R mount or contract for the manufacture of a camera with an R mount. The reasons appear to be commercial and not technical. Leica has a relatiionship with Panasonic but it may not be so good after the X1. Panasonic also does not produce a FF sensor. There are three manufacturers doing FF -- Canon, Nikon and Sony. If there is a relationship with Panasonic, Leica cannot also have one with Sony as Sony and Panasonic are bitter rivals. And I don't see either Nikon or Canon helping Leica to sell cameras that would allow R glass to be used. Why wouldn't they each prefer to sell their own glass? That leaves as a solution, licensing out the rights to the R mount to someone like Cosina, and having them build a SLR around the mount. Whether it would be FF or not would depend on the cost and availability of sensors from third parties. I don't think anyone ought to hold their breath.
Not true; the P65+ is a CCD sensor (Dalsa) and has it. The P45+ had it as well and was a Kodak.
If Leica can solve FF on a RF camera (when no one thought ANY digital was possible) they can certainly solve this.
Victor
PS But I still like an optical solution for the S2 best. There is ALSO the possibility that the adapter for an S2 could be AF!
Yes, focal legnth correction but with a range, so you set the approximate distancea and the AF adapter does the rest. This was how some of the Zeiss lenses worked, with TWO focus rings. The back lens/group always does the final focus. The adapter would link to the AF of thje S2 as a S2 lens. It would just have, say an R modular in front of it!
This is a REAL possibility. Leica, are you listening? (BTW, I am a physicist, so I know it is theoretically possible. I am not an engineer, so I am not sure it wouldn't cost $50,000! LOL
..and then of course, there is the "Visoflex2" solution. With less room the mirror would not be FF, but hell, I'll take center focus! (say half size since there is only about 1/2 in for the M>R registry.
Naaaa... the S2 adapting, autofocusing lens is the best solution.
Leica, get with it. I will ask only a small royalty as I own the patent on this.
Oh and while you are at it, add body stabilization for ALL lenses in the S2 Mark II...