Originally posted by Nicolas06
But there will NEVER be an A7 equivalent in K-mount. That why this is irrelevant.
A7 by definition is short registration distance.
The benefit of a short registration difference: a smaller form factor, requires newly designed lenses, so no, Pentax has little business going the Sony route.
B.t.w. I own and use a K3 as well as a Sony A7r, The K3 for birding and wildlife, and before I got the Sony A7r, I also used it for landscapes and portraits with Zeiss primes. The K3 handles like a "pro" camera, the Sony A7r handles rather like a consumer grade pocket camera, the battery door coming loose, the lcd laminated screen coming loose, the shutter sound very loud, the (plastic) mount cannot handle stress, the raw files are default lossy compressed, no option for lossless, there are color casts due to sensor stack reflections with my 28mm prime, battery life is short, no dual card slot, etc.....
Still, the K3 is never used anymore for landscaping or portraits, because the A7r despite all of its shortcomings has the one thing that matters, and which the K3 does not have: a very high quality FF sensor that produces images that simply make you enjoy photography immensely.
I.m.o., Pentax should leave the 24mp Sony FF sensor for what it is, and use the one sensor that opens up limitless possibilities: the Sony 36mp. Higher mp FF sensors are coming, but in much the same way as the 16mp sensor hit the sweet spot in Apsc format, the 36mp sensor hits a very sweet spot in FF format.
Chris