DayHawk wrote in post #3284524
That is just what I mean though, how do you know if your light is at f/8? do you turn up and down on the lamp until your meter measures f/8?
my lights are in digital numbers, they go up to 6.0 max in 0.1 excrements ( I know I didn't spell that correct

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- Nick
Nick,
Use any meter that is a flash meter. I use the Sekonic 558R but I think their flash meter is a 338, but any flash meter will work.
Then, you meter the light when you fire the strobe/flash and look at the meter reading. If you are looking for an f/8 light and your meter says f/4, then you need to increase the intensity of the light (brighten) by two stops. Keep doing this until you obtain your desired f/8 reading. Each light manufacturer is a bit different so I cannot give you exact numbers on your lights to change, but this is they way to do this. BTW, this is for the main light.
If you are using more than one light, i.e. a fill light, also you would want that light to be 1 to 2 stops less light to give a nice modeling to the subjects face.
Background lights work in the same way. Also with the backgound lights, you can start to control the intensity and color in your backgrounds by either making them higher or lower in stops than the main light.
Hope this helps,
Tony...