Portraits demand careful attention to the lighting, and studio portraits demand further attention to the lighting as you are responsible for controlling it all. No ambient to balance for, just flash powers.
So with that said, a lot rests on the photographer's shoulders, as your lighting can make or break your shoot. When you control all the light it is always best to shoot in full manual.
Initially, I set my camera the same for every shoot. Usually ISO400 f/8 and 1/200sec. Start firing some test shots now. Obviously there is no right or wrong way to light a person. There are things that work, and things that don't however. So you will just have to fiddle with the lights until it looks right.
As far as the power levels; the rim light was at the highest power of the three flashes. This gives a bright rim on the right hand edges of the model, and especially on a white background, really helps to separate her from it. The large umbrella key was the next highest in power, providing most of the light on the front of her body. This was in as close to the model as possible without interrupting the frame. Lastly the fill light umbrella was just there to fill in the shadows created by the key light, and so was kept a stop lower than the key.
Not much to this post, just sharing some of my techniques from my most recent shoot. If you would like to see more from this shoot, they can be found here. There is only six now, but you can expect several more in the coming days. It has been a very productive week around here.
[Sorry - this blog may mention a lighting diagram, which has since become a broken link with the original file lost, my apologies! - November 2012]
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