... 3.Speedlite 4.One Year Warranty Speedlite Flash Light For Canon DSLR Circuit Desing:Insulated Gate Bipolar Transistor(IGBT)Color ... flash spill, this is the rear-curtain sync function.Compatible with:Compatible camera models: Canon EOS 1100D, 1000D, 600D, 550D, 500D, 450D, ... ), automatically set for lens focal length;Power source: 4 x AA batteries (Ni-MH or lithium batteries compatible);Battery life: ...