I want to know what is the best way of setting up a background flash with a coloured gel in a studio setting.
I had a play around with this on Saturday. I started with a white background infinity cove setup using four studio flashes. I turned off the two that were on the background and put a speedlight in front of the background with a blue colour gel. It was pointing at a slight angle from right to left.
The idea was to light the background with a gradient blue effect. I did succeed but only by modifying the saturation on the blue in post processing because originally it was not bright enough. The flash was set to high power but I only had a faint blue colour come through in the originals.
I want to know what is the best settings to use for this so I can get a nice blue background without having to edit them pictures so much.