Originally posted by Marc Sabatella I suggest you put a stopwatch to that claim. All sorts of independent tests have been run by objective reviewers that measure AF speed in varying light. either of those cameras has ever proven to be magic in the way you suggest: even *with* the AF assist, they both slow down quite a bit in low light. There's no way turning off the AF assist is going to help with that.
why i turned off the focus assist light on the D300s is so i could do a side by side comparison between the two systems in the same room using a dimmer switch and turning the switch down little by little to check responciveness.
at the point where the k20 stalls and starts hunting and at least 3 seconds has passed and still no lock, the d300 locks on .
this was not a siencetific test but was enough to convince me that the nikon auto focus system was way superior to the pentax.
my biggest main issue from day one, is constantly hearing from people i am photographing, is "man why you taking so long " and i getting fustrated behind the viewfinder waiting for a focus lock.
when i heard pentax was releasing the k7 i had one on preorder, when it was released i got one from the first batch, it sat at my daughters apartment for 2 weeks, and by the mean time i started reading inputs from those who got theirs and realised that focus was still and issue. so i got my daughter to send it back.
so i am back to square one, 2 great lenses and need a good body to couple it to.
Dave
T&T