Bower SFD728C TTL Autofocus Flash for Canon E-TTL II Auto power saving and check indicator Guide Number: 92 feet (50mm @ ISO 100) Fully Dedicated Digital Flash System Compatible with all Canon EOS models including: 1D/1Ds, 5D, 7D, 50D, 60D, T1i, T2i, T3/3i, XSi, XS, XT/Ti, 300D, 400D, 450D, 1000D 28mm-85mm zoom Coverage