Originally posted by pingflood Don't bother, the guy is somewhat fanatical when it comes to Pentax.
Nothing to do with fanaticism but being fed up with people reading specs sheets and pixel peep instead of taking images and use them in real life.
The fact of matter is that unless you are a dedicated sports photographer that want AF at 8fps, all AF cameras on the market do the job provided the photographer know how to use it. The latter is sadly lacking as some seem to think that AF is some magic feature where all you need to do is to point the camera at the general direction of the subject and then whatever the photographer want to be in focus will be in focus. AF doesn't work that way. Like metering, AF is basically good enough and it boils down to knowing how it works. After 15 years of whining on various forums of slow AF I haven't seen single example where the culprit has not eventually turned out to be user error (ie used in the wrong way).
We all want noisefree images but discarding a camera because someone see noise at magnification level approaching a 1km sized print is ridiculous (I know I am exagregating but you get the picture). 1000ISO is more than usable, it is indeed good enough for fine art prints, and would have been pure science fiction a few years ago. Dedicated astro photographers better find a better tool but they are a minority.
Someone even dismissed the validity of the 645D because one could see som fringing at huge magnification.
Why not take photograps and be pleased with the progress. The idea that tne camera you have is useless and suck is nonsense....