We're leaving in 10 days for Disney World. I'm planning on carrying the 15-85, Sigma 30 and my 430EX, unless someone can convince me otherwise.
My 17-55mm lens (I imagine the 17-50mm lens would also do well) proved to be very effective in shooting Fantasmic! at nighttime. The 55mm, in particular, was a nice length. However as I said earlier I don't know how Fantasmic! is set up at Disney World. I'm pretty sure it's much further away. so you might be able to use the 15-85mm to get good shots.



