Paul Howell
Subscriber
If the F4 was my only AF camera I would use it for action as well, I have a Minolta 9. I also have a Minolta 9000, first generation, I haven't tested my F4 with an autofocus lens, but I bet the F4 would beat out the 9000, but likely not as good as an EOS1 with pro level lens. I guess I should put an EOS 1 on my list along with a good lens, get a decent AF lens for the F4 and see which one I would pick for action. What the A9000 has going for it is a pretty fast motor drive, listed at 5.5 but I timed it with fresh lithium batteries and it closer to 7 FPS. My F4 with MB 21 shoot 5.7 so in general use about the same as the A9000, not sure how fast the EOS 1 is.