I would like to try ringflash lighting for portraits with my hand-held 4X5 camera, used Weegee style. It would be somewhat difficult for me to place the lens through the centre of the ringflash, but I could place the ringflash right next to the lens, like an on camera-strobe. Would this still give the desired lighting effect even though it is off axis? Has anyone tried this? I have a Broncolor Mobil system which can accomodate the powerful Broncolor ringflash.