I’ve just ordered a second-hand flash gun and am really pleased with it. It’s probably the second-best Canon flash gun that money can buy and only cost me just under £150. I’m aware that it is designed for a film camera and some of the functionality can’t be used an EOS camera body but you can still operate it from the flash controls themselves. I’ll add to this post once I’ve had a chance to check out it’s features fully. I’m looking at a defuser, maybe a tupperware design and let you all know by updating this post when I’ve chosen one and had the chance to use it.