Macro Ring Flash LED Light for Canon, EOS 1D, 5D, 6D, 7D, 10D, 20D, 30D, 40D, 50D, 60D, 70D, 100D, 300D, 350D, 400D, 450D, 500D, 550D, 600D, 650D, 700D , 1000D, 1100D & 1200D SLR cameras (fits 49,52,55,58,62,67,72,77mm lenses) (Electronics)
Flickers, farbverfälschend (always "gray-pale" images, if you do not manually with high pressure adjusted) when not on maximum brightness, then an extremely piercing whistle. Flash programs and automatic climatisation not run properly on EOS550D
