Light metering with flash?

Discussion in 'Beyond the Basics' started by Dmitri, Aug 22, 2009.

  1. Dmitri

    Dmitri No longer a newbie, moving up!

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    This may be a silly question... When using off camera flash (I have the vivitar 285hv), how can you determine ambient lights and flash levels?

    For example, suppose I wanted a photo with a person in the foreground, but showing the background. I know two lights (one for person, one for background) -- obviously you can meter the ambient light with the camera, but how would you know what the flash will do?

    is it just trial and error every time? Like "Lets try it at 1/16. Too dark, ok how about 1/4?"


     
  2. table1349

    table1349 Been spending a lot of time on here!

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    Light meter. Sekonic makes several good ones.
     
  3. Dmitri

    Dmitri No longer a newbie, moving up!

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    Right, understand that. But how do you do it with a flash that only goes off when ya snap a shot?
     
  4. table1349

    table1349 Been spending a lot of time on here!

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    I use PocketWizards to trigger my off camera flash. Some Sekonic meters have built in PocketWizard transmitters. Hook a PW to the flash unit(s), set up your meter, hit the test button, flash(es) fire and you have your settings.
     
  5. Dmitri

    Dmitri No longer a newbie, moving up!

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    aaa I see. Ok, thanks :)
     
  6. Andrew Boyd

    Andrew Boyd TPF Noob!

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  7. table1349

    table1349 Been spending a lot of time on here!

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    Great Site to learn about using off camera flash.
     
  8. Village Idiot

    Village Idiot No longer a newbie, moving up!

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    Or leran about Guide Numbers (GN).
     

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