Hi all - similar to the 'macro on a budget' thread, how about flash on a budget ? Specifically, anyone had any good results with old ring flashes for macro work ? I picked up a Sunpak from Ebay UK but it never worked unfortunately. There are lots of cheap old ring flashes so I'm thinking of trying another. I'm aware of the trigger voltage dangers etc but just asking the question whether anyone has had good results ? Cheers !