Applying 3-Point Lighting

Applying 3-Point Lighting

Comments

Distances

It's not so much a matter of distance, as the amount of light you are putting on the subject. A brighter light would require more distance, all other things being equal, a weaker light less distance. Your camera's waveform monitor (luma scope) and a three-point gray card are your best friends on this issue. Lights are adjustable (filters, scrims, or barn doors) so that you can set the distance for what the physical set allows, then adjust luma to get proper exposure. Set your key light for a proper exposure, then add just enough fill to softer shadows, and finally add a rim light in back to add definition and depth. I usually back off the key light a little as a final step, since the fill and rim lights do have an effect on exposure.