I have a Lastolite 2 light set-up and have the lend of a 580 cannon speedlite (with no manual). I have used my 2 light set-up (one linked to camera and the other set on slave) to have a sort of studio set-up but the background is not pure white. What do I have to do to add the speedlite as an off camera flash to help blow out the background.
I have tried setting it to slave but this does not work .
Please help
I have tried setting it to slave but this does not work .
Please help