After setting your camera for the ambient exposure you then set your flash power output to what level you think may work. Say 1/4 power. Take a shot. Look at the image and determine if this is what works for you. If not then adjust the flash output +/- depending on what you want. You can also use a meter to determine the light difference between the ambient and the flash power. Usually the output from the flash should be about 2 stops above ambient. It all depends on the look you're trying to achieve.
Metering ambient / subject in a hurry
in Lighting Equipment
Posted
Bob,
After setting your camera for the ambient exposure you then set your flash power output to what level you think may work. Say 1/4 power. Take a shot. Look at the image and determine if this is what works for you. If not then adjust the flash output +/- depending on what you want. You can also use a meter to determine the light difference between the ambient and the flash power. Usually the output from the flash should be about 2 stops above ambient. It all depends on the look you're trying to achieve.
-Sherman