You are using the wrong flash for the job. The Canon flashes are very tightly integrated to the 35mm format (OK for digital the 2:3 aspect ratio format). Zooming to match your lens focal-length, etc. For this reason (and to maximize the light/guide number (as mentioned in another posting)) the coverage needs to be rectangular.
You need a different flash, like a Quantum Q-Flash or a Lumedyne. They'd give you square (round) coverage that will handle your rotating camera.
Mr. Bill * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
