Originally posted by thibs Of course they want to: not taking anything back (like compatibility) but giving enough reasons for most of us to upgrade to new ones.
Yeah I am on the same page as you here, it is plausible that we will have SR in the optics instead of the body.
No SR:
We know from earlier leaks that SR has been a concern for the full-frame. might be that Ricoh decided to not try to solve it but do as all the other manufacturers.
There has been rumors that K, M, A, F, FA lenses would not support SR since they wont be able to fill the sensor when it moves. Probably causing weird vingetting or something similar.
There is that third switch that I mentioned earlier.
SR:
Sony has obviously solved it with a full frame.
Pentax has "always" had it.