Originally posted by illdefined - The Prime M doesn't count as a current processor? one of each Prime maybe, for 14bit RAW processing and peaking...yes code would have to be written, imagine that. you said it yourself Pentax has to do this for their next camera anyway.
- yes SAFOX is inadequate. Pentax has to fix this for their next camera anyway too because it's still inadequate for APS-C.
- as for SR, I'm afraid a 'small user sample from a certain forum' would be more relevant than just YHO. IMHO.
- those 'designs, molds and patents" produced thousands of real, working AF, FF lenses that made it to market. not theoretical.
so yes, making an FF DSLR would be "much easier" than you made it out to be.
I don't know why Pentax is exempt from having to make some 'considerable effort' to remain relevant in the marketplace like the rest of its competitors. I don't think there will be enough Pentax apologists here to keep Pentax alive by buying K-5VIIIs with SAFOX XXVIII through 2015.
Some points were already answered by Clavius, I won't repeat what he said.
I'm sorry but the few users here who would buy a "full frame" if it doesn't have SR are not enough to make for a market (no offense; it's about numbers, not quality). I firmly believe that overall, SR would make the camera more desirable, not less.
History lesson: the K100D did quite OK, but the $100 cheaper K110D failed.
"Much that once was is lost"
You can't promote a brand new $3000 "full frame" camera with second hand lenses. You cannot just re-launch lenses unsuitable for digital; and even redesigning only the barrel - if they can get away with that in some cases - counts as "effort".
Everyone is making
better lenses, including 3rd-party lens makers; Pentax can't afford to be sub-par. So, new lenses with improved designs are an absolute requirement.
And please note I'm only saying it won't be easy, not that they shouldn't do it (on the contrary, I think they should). But underestimating the effort and risks, and overestimating the benefits won't help. Nor does asking for "cheaper and better", i.e. not being willing to pay what it's worth