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Now it’s time to fire up your EOS T3i and take some photos. The easy part is turning on the power—that Off-On switch on the right side, just east of the Mode Dial. Turn on the camera, and, if you mounted a lens and inserted a fresh battery and memory card—as I prompted you in the last chapter—you’re ready to begin. You’ll need to select a shooting mode, metering mode, focus mode, and, if need be, elevate the T3i’s built-in flash.