Originally posted by indy
I would doubt it. But I also doubt the next GR will be ff. One thing to consider though is that to use the conversion lenses you have to first buy the plastic barrel/hood combo to mount the lens on. If they happen to change this transition part you will be out of luck with your lenses....even if they stay apsc with the next model. Buy them and keep the entire kit as a back up to the new GR, or sell the entire kit to finance the new GR. If they work, sell the old body and keep the conversion lenses. Lots of options and too many unknowns. Oh, I have also read (not sure if it is true) that the conversion lenses are designed specifically for a given lens, so even if compatibility is maintained, the immage quality may be degraded.
I doubt it to but they didn't this stunt with "digital GR" models