Neewer MK600 E-TLL/E-TTL IIHigh Speed Sync 1/8000s HSS LCD Display Speedlite Master/Slave Flash for Canon Digital SLR Cameras, such as EOS 5D Mark III , 5D Mark II, 1Ds Mark 6D, 5D, 7D, 60D, 50D, 40D, 30D, 300D, 100D, 350D, 400D, 450D, 500D, 550D, 600D, 650D, 700D, 1000D, 1100D/EOS Digital Rebel, SL1, XT, Xti, Xsi, T1i, T2i, T3i, T4i, T5i, XS, T3