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Canon EOS-1D Mk4 AF and fast/slow auto tracking

johnmac 7 128
22 Sep 2012 2:04PM
Hi all, Canon EOS-1D Mk4, I tried it out in AF and fast/slow auto tracking at a rugby match I found that when it focused it was going in and out of focus as if it was consistently hunting to focus. I was using a 70-200 f2.8 lens. Any ideas what I could be doing wrong?

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whipspeed 13 4.2k 22 United Kingdom
22 Sep 2012 2:18PM
Had you got it set to focus on multiple focus points or on 1 or one with group round? When shooting cycling I always use one point where I know where the head of the rider or riders will be in the frame & never had problems with hunting on my 1D Mk3. It may be having problems as too much going on in the frame and not knowing what to focus on.
stevie Plus
14 1.2k 2 United Kingdom
22 Sep 2012 3:45PM
I do a lot of my animal shots using a single point and it's certainly effective
geoffash26 14 2.5k United Kingdom
22 Sep 2012 4:05PM
Loads of customsetting the go hand in hand with focusing. Still trying different setting myself but did find some interesting reading here
geoffash26 14 2.5k United Kingdom
22 Sep 2012 4:08PM
and more here
whipspeed 13 4.2k 22 United Kingdom
22 Sep 2012 4:57PM
Some good links there Geoff. I got something off the Canon website when I got the Mk3 a few years ago an it gave recommended start points for settings for different sports. It was really helpful, as there are so many customisations you can make.
johnmac 7 128
22 Sep 2012 5:26PM
Tried it on both single and group around. This morning took some shots of a horse walking slowly on single AF and it was hunting in and out to focus, didn't try it on group around though. Mate told me if there is no chance of anything crossing the subject single AF should be fine. Going to the park tomorrow with quite a few matches going on I'll try out what you suggest with it fixed on the monopod. Them links you gave are very useful.

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