Quote:YES!The tennis player serving and golf player swinging will have a subject distance change. No AF tracking will result in a number of less than optimal in focus images.
So in theory, if a DSLR has both a mechanical and an electronic shutter (not withstanding data flow bottlenecks) it could get to V1-esque speeds of 60 RAW fps?
BTW, I disagree with BC that "A high frame rate with no AF tracking, that hardly ever is a useful feature". There are many cases where you have one central point of interest but what you want is high fps.
For example, a tennis player serving, a golf swing or even freezing a bunch of bees going into their hives.
AF tracking is all about subjects coming closer or going further away, it is not about subjects moving across the frame without distance change. So, I am confused about the "one central point of interest".