Flash Control via the Camera Menus Any control of the Speedlite 270EX II beyond simple automatic E-TTL exposure requires a camera body with External Flash Control Menu capability, such as the EOS 40D - 60D; Rebel XS/XSi, T1i, T2i, T3, T3i; EOS 7D, 5D Mark II, EOS-1D Mark III / Mark IV, and EOS-1Ds Mark III (as of mid-2011).
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