Originally posted by biz-engineer Question: are you still able to AF with the TC => @ f8 . Did you prefocus manually? What was you technique?
I use AF.C with 9 focus point in the center.
Yes, all AF, no real manual prefocus... well not really... I often pre-AF-focus (when I think about it before) in a area about the same distance to where I expect the birds to come... to prevent the lens to hunt all the range (I should use the focus limiter, but I do not reallyexperimented it on that lens)
so When I focus in advance, i.e. farther than the final shots, when they approach in angle from me, then i press the shutter half-way to set the focus on the subject. When they get close enough, I pulll the trigger in hi-speed burst mode and follow the birds passing in front of me
(not sure if I explain correctly, if my explanation makes sense?)
sometimes, when the background is busy like on these ones, it can happen that AF.C lose the bird, so I press the sutter release half-way again, until it has the bird in focus and I burst again while following the birds
that's about it...