Opteka EF-710 DG Super E-TTL II Autofocus Dedicated Flash for Canon EOS 1Ds, 1D, 5D, 7D, 60Da, 60D, 50D, T5i, T4i, T3, T3i, T2i, T1i, XSi and XS Digital SLR Cameras Works on all Canon EOS digital SLR cameras Bounce capabilities in 5 steps up to 90 degrees; flash shooting distance range from 2 and up to 72 feet 35mm angle of coverage with Canon digital SLR cameras Guide number (ISO100) 22(m)/72(ft) at 35mm Advanced 2nd generation flash technology, only compatible with rechargeable AA batteries (Lithium, Ni-cd & Ni-MH)