Back-button AF was first suggested to Canon back in the late 1980s by sports photographers who saw the need for some way to be able to start and stop AF without interfering with shooting …

Click the Canon Digital Learning Center (CDLC) link below to access the in-depth article on the EOS System: Back- Button Auto Focus Explained Note: If the link does not respond, paste this …

Back-Button Auto Focus Explained http:// www. learn. usa. canon. com/resources/articles/2011/backbutton_af_article.shtml

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This AF operation is suited for moving subjects when the focusing distance keeps changing. While you hold down the shutter button halfway, the camera will keep focusing on the subject …

Edges of subjects in focus can be displayed in color to make focusing easier. You can set the outline color and adjust the sensitivity (level) of edge detection.

Once you press the shutter button halfway and the subject is in focus, the AF point turns green and the camera beeps. An orange AF point indicates that the camera could not focus on …

As you shoot, edges of subjects in focus can be displayed in color to make focusing easier. You can set the outline color and adjust the sensitivity (level) of edge detection (except in / modes).

Use the keys to move the magnified area into position for focusing. To center the magnified area, press the button. Focus manually. While looking at the magnified image, turn the lens focusing …

You can manually adjust the focus after the AF operation if you keep holding down the shutter button halfway. You can magnify the area in focus and adjust the focus manually by turning …