what aperture to use with external flash

Discussion in 'Digital Discussion & Q&A' started by chocolate, Sep 7, 2008.

  1. chocolate

    chocolate TPF Noob!

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    hi all

    what aperture do you use when have your external flash on?? e.g day time and night time.

    i am using d80 and sb600. i find that when i use maximum aperture e.g f2.8 with my external flash.. all i get if overblown photos..
    but when i changed to f8. it turns out quite nicely.

    i want to learn a bit more abt aperture with flash but cant seem to find much.

    is there a good book or some more experience photogs here can help ??
    how do you know what aperture is best with flash (TTL) on>??


    thanks for help in advance.
     
  2. Flash Harry

    Flash Harry TPF Noob!

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    with any flash the aperture is related to Flash to subject distance and power, it depends on how high the flash output is, if you want to use a wider aperture either move the flash further from the subject or reduce the output power, personally i leave the flash at full power and adjust the aperture accordingly, I control DOF by moving camera position closer to subject or use a longer focal length lens. H
     
  3. reg

    reg TPF Noob!

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