BBF, AF and AI Servo

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stevet1 Regular Member • Posts: 125
BBF, AF and AI Servo

I just got into back button focus, and I like it a lot. It's a lot quicker, I think, but I have a question.

I haven't had a chance to experiment with moving subjects yet, so I'm not sure of something.

If I am in AI Servo mode, do I keep my finger on the BBF button as I follow the subject, or should I keep my finger off the button and let the AI Servo take care of things?

If I keep my finger on the BBF button, are the autofocing and the AI Servo working at cross purposes?

Does BBF work best in single shot mode?

If I understand it, AI Servo works best when the subject maintains the same distance, but what if you have somebody running let's say a zigzag pattern, moving either toward you, or away from you?

How should I handle that?

Thanks,

Steve Thomas

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