Originally posted by schufosi777 I totally agree with evertything u said.
Notwithstanding RH, I agree. It appears that pentax has a breakthrough here.
at least part of the reason for having a good camera is to take better pictures, and a combination of wider latitude (as we called it with film) and more MP's should give pentax a leg up at the sales counter. Just as computers sold based on Mhrz long after it was mostly irrelevant, SLR's are in a MP war, and the highest MP for the buck is gonna be the winner, and if it can actually take better photos too, that is a bonus.
Lack of dynamic range has long been a pain in the digital world, and it has put extra demands on the exposure control system to 'get it right'--but improved DR will impart a little forgiveness in the exposure control.
Similarly the higher ISO's will do good things for the AF as well because this will allow the program line to be tweaked to produce a greater depth of field envelope, again reducing the demands on the AF accuracy. Improved shake reduction points in the same direction.
If the better sensor pushed the envelope a couple of F stops on the ISO scale from the K10 and the shake control gained an F stop, and we have another EV in dynamic range, if we turn all this to increasing our depth of field, it will put a lot more of the world out there within the 'in focus bubble'---and profoundly so with the shorter focal lengths that tend not to have depth issues anyway.
Depth of field scales are sort of out of vogue now, but I own an SMC-A 15mm lens and it
offers a hyperfocal range of 1 foot to infinity at f16, and since that is pretty much the full focal range of the lens, focusing the lens correctly is not a big deal if you can shoot at f16.
My point is simply that witih all this new speed, AF doesn't need to be very smart to have good results. With a standard 15-50 focal range, you should be able to take most photos
under lighting conditions historically suitable for photography, at f16, and if the AF can park the lens in the hyper focal area most of the photos will be in focus.
the K20 should with the cumulative changes take good photos at least 6 f stops faster
than the classic 35mm SLR. This is pretty much the full range of the aperature ring (if the lens had one)
While I don't want to apologize for a lame focus system, objectively it appears that one is hardly needed, and that the 'trap focus' mode should work well if it is smart enough to find
the hyper focal area of the lens and then shut down.---profoundly so if AUTO ISO and depth of field bias is used in the program line because virtually everything will be in focus that the lens can see. It's harder to come up with a wrong answer if there are no wrong answers.