... Work with flash units using universal hot shoe like CANON, Nikon, Sigma, Olympus, Pentax,such as Canon 1Ds,5D,7D,30D ... ,40D,400D,450D,500D,Nikon D700,D300,D100,D90,D80,D60,D40,D40x,D3,D2,D1 ... ,E500,E420,Pentax,K20D,K200D,Fuji S5 Pro (not Compatible Nikon SLR -D3/D3S ,Canon 1D/5D/7D/50D ,Fuji HS11 ...