Will this work with the canon 600ex?
I use the snoot with the strobes unimount. I say this because I have heard they also made a snoot with a velcro strap attachment. I don't have the 600EX, but the dimensions of the opening in the unimount are 1 3/4 on the short side by 3 3/8 on the long side. This is plenty big for the 580 EX II. and I suspect big enough for the 600 EX but I would measure the 600 before ordering