have to agree - in my limited experience, side to side is much easier to track than toward/away.


As far as quickly switching between AF points during a tennis rally, I think that's probably unrealistic. Between rallies, sure, but while the rally is in progress? If that's the goal then I think I'd rather have a Leica and just learn to focus manually all the time. I really don't enjoy being dependent on AF anyway. Unfortunately today's DSLRs aren't geared toward MF at all, esp the APS-C bodies...


A few months back I posted a new thread asking for input on the Katz Eye Optics (split-prism focusing screens for various DSLRs) and the product (and the thread) was so popular it didn't even generate one reply. Ha! Oh well, not much call for MF out there apparently.


Anyway, whatever the case may be, I think I'll try Servo mode again, but this time I'll enable all nine points and let the 40D do its thing. Hold the shutter button down halfway, follow the subject, and snap bursts of shots. I'm hoping if I drift a little - when the center point slips off the subject - an adjacent AF point will pick up the focus. I'm not entirely sure it works that way, but I'll give it a try.