skygod44 wrote in post #8775037
Ouch! Very tricky to nail it on a moving 2 year-old! Next time, try the pre-focus method I mentioned, and if he's not bobbing his head up and down too much, try different aperture/exposure combos so we can see if there's a "magic ratio" for kids. And I'll do the same with my daughter, as soon as the current typhoon blows itself out.
I would suggest that you're talking about a very different type of shot here, and that pre-focusing isn't going to help one bit in this scenario.
First, you're talking about a kid running toward you, I presume, and your focus point is somewhere just in front of him, and you have your magic finger poised on the shutter button, waiting for the kid to run through the focus window. So this is no longer a discussion of panning, showing motion, etc, as there is no way you'll get a panned shot here unless you wanted the background still and the kid blurry. Maybe I'm missing the possible artistic shot here, I just don't see anything useful out of that. So given that qualifier, there's no reason not to use a high enough shutter speed to just freeze the kid. Set it to 1/1000 and be done with any worry about motion. And then you only have focus to worry about. This problem is one of tracking the kid with the center focus point, and having a camera and lens that can keep up. I would hazard that this should be quite doable with reasonable pro-sumer equipment. I used to shoot dogs running straight at me with a 20D and 100-400 lens, and it worked perfectly fine. I'm sure the newer cameras are focusing faster than the 20D, and while the 100-400 is a good lens, it's not stellar fast.
On the other hand, if you're not talking about the kid running toward you, but instead he's running laterally such that you could conceive of panning, then rather than pre-focusing somewhere, you can certainly just track him with the center focus point, as usual, and try to get one of the "movement shots" this thread is about.
Dave