Originally posted by NaClH2O Good points all and I agree with them in a perfect world. However I don't think that Pentax has the resources to produce two top level cameras. Unfortunately, I doubt that their R&D resources is up to funding two different approaches. I'm pretty sure it would have to be FF or Killer AF. That being the case I voted for killer AF. Like more than a few here I am mystified by the instance on a FF camera.
NaCl(can someone please explain why I need a FF camera? )H2O
A lack of resources is why I was saying Pentax should release a lower specced full frame camera at first if they bring one out at all. Until they build new lenses that can take advantage of a $2500 camera's performance, why worry about spending research dollars on that behemoth? I was also trying to be more flexible with my thinking by making the APS-C camera the clear flag ship, and the FF camera the beginning of an alternate line that they could grow into.
While I can't explain why you need a full frame camera if you don't feel like you need one, I can explain why I want one.
The full frame camp seems to me to have varied motivations just like the better autofocus camp does. A lot of them, I think just based on what I've read, want full frame for better image quality gained from a larger sensor. Or better cropability that comes with those 24 mp sensors.
On my part, I'm pretty pleased on the whole with APS-C sensor image quality. If Pentax could boost the High ISO and dynamic performance even a little more over the K-x sensor, while still having clean and beautiful ISO 100-400, I don't think there'd be much I could complain about image quality wise.
Other full frame advocates want the narrow DOF you get with full frame. I think this would be cool, but this also isn't a deal breaker for me, as it's hard enough to get things in proper focus with narrow DOF on an APS-C sensor, let alone a full frame one.
I also think the really narrow DOF technique is overused, and I'd like to avoid the temptation to only use that in my photography.
The reason I want full frame is because I would like a high quality, wide angle and wide aperture lens 1.4 to 1.8, nice bokeh, sharp wide open, the whole bag, that I can use for everything from photojournalism to wedding photography to candid snaps. I already own one of these in the FA31 f/1.8, which becomes a 46 or so mm normal on a APS-C camera. There is no replacement for this in the Pentax system as it stands today.
So, to be honest, if Pentax came out with a great 18 or 20 mm f/1.4 lens, my main reason for wanting full frame would go away. But I doubt a lens like this will be released even more than I doubt that Pentax will go full frame.