O'Reilly logo

Canon EOS 40D Guide to Digital Photography by David D. Busch

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Setting AF Point

You can change which of the nine focus points the Canon EOS 40D uses to calculate correct focus, or allow the camera to select the point for you. As I mentioned in Chapter 1, in A-DEP, or any of the Basic Zone shooting modes, the focus point is always selected automatically by the camera. In the other Creative Zone modes, you can allow the camera to select the focus point automatically, or you can specify which focus point should be used.

To review, there are several methods to set the focus point manually. You can press the AF point selection button on the back of the camera, look through the viewfinder, and use the multi-controller knob (to the right and below the viewfinder window) to move the focus point to the zone you ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required