I really love ZA's lighting tutorial here. http://www.zarias.com/?p=101
Since I have a BLACK muslin backdrop, his superb white background tip doesn't really work for me. I can't light up my pure black ground, can I? Also, he stated that the minimum 3 lights are always the best choice. I assume because he uses two light to evenly light the background alone and use only one light (or more) to take care of the main subject.
Now I have two 750W light with a big blackdrop. I have a big softbox with a few umbrellas as well. If necessary, I can throw in a 580II. I understand with the black ground, it is important to separate the background and the main subject. I seriously have no idea how to make the separate with 2 strong lights. I really like Zaras' photo (the girl with the red flower scarf). Here is what he wrote.
"For the image above she was about 15 to 16 feet away from the BG(WHITE). I had a big softbox pointing just in front of her. Enough for the feathered edge to light her. Then I had a second light add a bit of a side light for separation making sure that the side light did not hit the background. "
However, he didn't mention where he pointed the 2nd light to create the separation? And at what power ratio vs the main light? It should be on the side, doesn't it?
I would like to hear anybody's experience with BLACK background. Unfortunately, I don't have any grid or beautyfish if they make the lighting better.
Thank you for sharing and discussing in advance.