Canon 244T flash and case. GN 53, simple flash, all adjustments made automatically, flash fires infra-red preflash to determine exposure then sets cameras x-sync speed. Especially recommended for use with T50, can also be used with T70 or T80 w/AC lenses. Can also be used with A1, AE1, AE1 Program. Can not be used with T90, T60, original F1 or any EOS camera.