7D AF in AI SERVO (photos included)

Started Feb 4, 2013 | Discussions thread
TTMartin Veteran Member • Posts: 7,304
Re: 7D AF in AI SERVO (photos included)

Ahender wrote:

elfroggio wrote:

Yes, removing the focus from the shutter and using just AF-ON will significantly improve the focusing. It take a while to get use to using the thumb instead o the index, but you can control the when of the focus which you can't with the index/shutter.

I have never read anything that stated using the AF-ON button for focusing will improve focusing.

Is that from experience or is it listed in Canon's documentation?

There is no difference in the quality of focus using back-button auto focus. The only way it could improve focus would be that it starts tracking a second before the photo is taken. This can be duplicated on the shutter button, with a pause at the half press.

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