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

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Flash Control

This multi-level menu entry includes five settings for controlling the Canon EOS 40D’s built-in, pop-up electronic flash unit, as well as accessory flash units you can attach to the camera. (See Figure 3.26.) I’ll provide in-depth coverage of how you can use these options in Chapter 6, but will list the main options here for reference.

Figure 3.26. The Flash Control menu entry has five setting submenus.

Flash Firing

Use this option to enable or disable the built-in electronic flash. You might want to totally disable the 40D’s flash (both built-in and accessory flash) when shooting in sensitive environments, such as concerts, ...

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