DH opens up with saying that by the end of the lesson you should know that lighting has depth of field and with enough light you can turn a white wall black.
Distance:
At the mention of the inverse square law, and mathematical calculations makes static play in my head like a broken TV. But DH has put it simply in that the closer you are to the light source, the more powerful the light will be. Now that is quick and easy to understand. Common sense right?
Example: The subject is the same distance from the background as it was in 1.1.
The light source was 5 feet from the subject.
If you move the light source farther away from the subject, and expose for the subject, the background will be lighter. The fall off from the light source is greater, therefore there is more light on the background. (Right?)
If you move the light source closer to the subject, and expose for the subject, the background will get darker. The light has a shallow depth of field, the fall off is less. The light source is hitting the subject and not much of the background. Hitting it home.
Assignment:
Mac sync speed, Flash on 1/8, 5 or 6 feet away from subject.
Move light far away, adjust flash power if need be.
Then move light right in tight, adjust flash power.
Tags: strobist lighting102 position distance
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