Flash Photography Question

Discussion in 'Canon Accessories' started by sunny_sony, Nov 11, 2012.

  1. sunny_sony

    sunny_sony TPF Noob!

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    Hi all,

    I have some doubts on flash photography.

    I have Canon 430 EX II external flash and I like to know how can I control flash exposure in ETTL mode.

    For example: My camera settings are:

    Shutter Speed: 80
    Aperture: 2.8
    ISO: 100

    Flash shows the distance to subject should be : 10 meter to get correct exposure. But I can't move back any further and I can only shoot from maximum 3 meter distance.In this case flash power is over-exposing the subject as I am shooting too close.

    I don't want to change my Aperture value as I need shallow depth of field.

    I like to know how can I control flash exposure in this situation using ETTL mode.

    Should I use Flash exposure compensation? But it looks bit much to change setting every time I change my position to shoot.

    Thanks.


     
    Last edited: Nov 13, 2012
  2. Derrel

    Derrel Mr. Rain Cloud

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    Can You adjust the flash's power output level LOWER????
     
  3. sunny_sony

    sunny_sony TPF Noob!

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    I can but with Flash Manual mode with 1/2 or 1/4 of power. But when I am constantly changing my position and shooting, adjusting these settings take time. :(
     
    Last edited: Nov 11, 2012
  4. IgsEMT

    IgsEMT No longer a newbie, moving up!

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    If you want constant light, go outside when the sun is on top of you at mid day and shoot like that. OR get and off-camera flash and keep it the same distance from the subject.
    As far as speed it takes to adjust something, if you know what you're doing, it takes less then a second.
     
  5. enzodm

    enzodm No longer a newbie, moving up!

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    What if you simply use Av? The flash should do a pre-flash just before the real one to calculate exposure.
    If not, just check you didn't unset something in the flash section of camera menu (or read your flash manual, I'm sure there is an equivalent button on the flash).
     
  6. katerolla

    katerolla No longer a newbie, moving up!

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    Hi where abouts are you in aus, I'm in newcastle
     
  7. sunny_sony

    sunny_sony TPF Noob!

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    Thanks very much everyone. when shooting with flash I am keeping the flash direction away from subject's face to avoid harsh light. I don't have diffuser. Is it the right approach? or should I buy a diffuser instead?
     
  8. sunny_sony

    sunny_sony TPF Noob!

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    I am in Melbourne :)
     
  9. 2WheelPhoto

    2WheelPhoto TPF Noob!

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    Change that to native ISO number.
     
  10. sunny_sony

    sunny_sony TPF Noob!

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  11. MLeeK

    MLeeK TPF Noob!

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    Ettl is far harder than manually adjusting your flash. You have 100% control over the flash that way. If you are using ettl it can change depending on what your meter is hitting among other things...
     
  12. sunny_sony

    sunny_sony TPF Noob!

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    When the flash is mounted on camera and I change the flash to manual, I can see 1/1 which I can change to 1/2,1/4....is this what I need to do to control the light? what about flash compensation setting when used with ETTL mode? is it good technique?
     

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