I was trying a few things yesterday involving a studio backdrop which was lit using a grid to provide a gradient effect and a subject about 3ft in front of it, with its own lighting through umbrellas.
I was having problems with the shot being over-exposed. I had my studio lights on the lowest possible power setting, ISO-100, a shutter speed of 250 (the max sync speed) and my aperture was f/22 which is the highest it will go.
I don't really want to have to use the highest possible aperture value, and would like a bit more room to adjust it. The background was so detailed that you could see the paper texture which would had been better blurred out slightly.
Is there any way that I can further adjust the light input so that I have more flexibility with my settings?