Originally posted by Rondec I think most other brands to this point have significantly better auto focus than Pentax whether you are talking about SLRs or MILCs.
I should have been clearer : Sony has better AF
tracking than Pentax. Pentax's single point AF-S with the newer lenses is on par with what I've seen from others. The DFA* 85mm can focus so fast it was hard to measure.
Originally posted by Rondec How much faster is a A7C than a Nikon D780?
No idea.
Originally posted by Rondec I'm sure it has more auto focus points, but once you get to a certain point those aren't as important as how the camera uses them.
It has many hundreds of points. The neat thing is having phase AF built on the sensor, so the camera can use that plus contrast AF.
When I get back on the K-1 (or K-3) I realize that there is a "better" way to use each camera. With the K-3, I use single point select AF-S. With the K-1, except when I need to nail focus on a small object, I use Select 9 points AF-S. On the A7C, I activate eye AF (which overrides anything else), zone (about a third of the screen) or wide (full screen) with AF-C, and I have a toggle to switch to point AF when I don't like the selection. Still learning the ropes on the Sony, but this seems to work well for me. Of course, there's also touch AF which lets me override anything by pressing the screen.
One thing I don't understand is the lack of a MF switch. Yesterday I was doing close-ups with the K-1, and I frequently toggled between AF and MF. Also, Sony's lenses can offer the equivalent to quick-shift, but it needs to be activated, and is incompatible with AF-C. Since it's focus by wire, there is no reason why it wouldn't be always active by default.