The CowboyStudio O Ring flash Adapter creates a very special lighting effect, there are no electronics, no flash tubes and no cumbersome cables! It uses a clever system of internal prisms, reflectors and light-shapes to distribute the light emitted from the flash unit.
MODEL: F170, is suitable for:
CANON 550EX 580EX/580EX II + 50D 40D 30D 20D 10D 5D 5D II 7D 60D
NIKON SB900 + NIKON D80 / D50 / D90 / D40 / D60 / D70S