Not my take, but the Pentax Klub's. Here's the translated quote:
"The electronic module is not everything. It also take software to run it. Until now, Pentax lived of the legacy software running on K10D, beautified over time. Some routines were rewritten to make it more reactive. However, fundamentally the algorithms remained the same. According to our source, Ricoh Imaging, aware of the delay, decided to start the complete rewriting of the software. If that proves exact, Ricoh Imaging started from zero, with the goal of a more modern, less legacy restricted code. With rewriting there's often speed gain in execution, therefore faster reactivity and why not a bit more predictability. Which, true, is not the easiest task. It takes some artificial intelligence to determine which direction the subject will take. For linear movement, this may be simple, but for a bird, it's more complex, as sudden direction changes may occur."
My personal experience is that K1, while orders of magnitudes faster, still retains some of the same hesitations, last moment adjustments, as my first Pentax - MZ-5N - did, with the same lenses.
Originally posted by stevebrot Perhaps you might start a new thread and elaborate on that claim. Having owned a K10D and K-3 concurrently, I am surprised to discover that the newer camera used the same AF algorithms. The K-3 seemed to be so much more capable. I am also surprised that this is the first I have heard of it.
Steve