Canon EOS 1D Mark II, 1D Mark II N, 1 D Mark III, 1D Mark IV. Canon EOS-1D X Mark III, 1D X Mark II, 1D X. Canon EOS 5D, 5Ds, 5Ds R, 6D, 7D, 1D. And, a shutter release button lock is available which for long exposures shooting and Continuous shooting helpfully.
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