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David Busch’s Canon® EOS M Guide to Digital Photography by Lee Sheldon

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Choosing an Exposure Method

You’ll find four Creative Zone methods for choosing the appropriate shutter speed and aperture: Program (P), Shutter-priority (Tv), Aperture-priority (Av), and Manual (M). To select one of these modes, tap the exposure mode icon at top left of the touch screen, and in a similar position on the Quick Control screen (shown earlier in Figure 4.9, left). Then select any of the four exposure methods. The same screens also allow you to select from the less versatile Basic Zone exposure methods.

Your choice of which exposure method is best for a given shooting situation will depend on things like your need for lots of (or less) depth-of-field, a desire to freeze action or allow motion blur, or how much noise you find acceptable ...

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