So .... this thread started with a great title: " AF-C of K3III is impressive".
What really interests me is: how
impressive will it be, using a DA*300/4, for BIF and a mix of BIF/low light conditions ?
I know it'll have to wait until the camera becomes available to more users here before we can actually see how "impressive" the AF-C will be (wishful thinking?).
Example: on a hiking tour in the deep forest/bush, you see a very small and well camouflaged Brow Creeper against the tree bark. That small bird moves quite fast while searching for foodstuff. Often times, using the K3, the numbers (camera is set for TAv) go up to ISO3200 to ISO 4000 at 1/1000s !! Of course, there is a lot of resulting grain and at the same time, the camera has a heck of a time to AF on that bird, even in AF-S.
I'm including a sample shot here.
This was shot in AF.S, BTW.
((Mod's: delete the picture if you feel that it has "no business" to be here on this thread))