Compatible with EOS 1Ds Mark II, EOS 1D Mark II N, EOS 1D Mark II, EOS 5D, EOS 50D, EOS 40D, EOS 20D, EOS 30D, EOS 10D, EOS 500D, EOS 450D, EOS 400D, EOS 350D, EOS 300D, EOS 1000D