EOS 1D,EOS 1Ds. EOS 1D MarkII,EOS 1Ds MarkII. EOS 1D MarkIII,EOS 1Ds MarkIII. And, a shutter release button lock is available which for long exposures shooting and continuous shooting helpfully. Shutter release button lock : A shutter release button lock is available which for long exposures shooting and continuous shooting.
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