For Vivitar: 2500, 273, 3500, 5200, 550 FD, 728AF, 836, 840AF, 850AF, DF200. 1 Diffuser Cloth. For Canon: 580EX, 550Ex, 540EZ, 430EZ, 420EZ, 430EX, 420EX, 380EX, 520EX ,300TL. Used to scatter the flash lamp light to reach more excellent photography effect.
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