What am I doing wrong?

Discussion in 'Beyond the Basics' started by crystal_lynn, Mar 23, 2008.

  1. crystal_lynn

    crystal_lynn I am sure I sound childish

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    I did a session today with my niece and set my lights up like I have every other time. However, I kept getting this shadow, especially when I held the camera vertical.

    Also, even though I didn't change anything inbetween frames some of the frames are overexposed and some under?? I am so confused!!

    Here is an example:
    [​IMG]
     
  2. Sw1tchFX

    Sw1tchFX TPF Noob!

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    You're shooting faster than your camera can sync. Your camera syncs only to about 1/200th of a second.
     
  3. JerryPH

    JerryPH No longer a newbie, moving up!

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    The pic is tiny, and has no EXIF data... I really wish I could help, but you did not give me very much to work with.

    Sw1tchFX mentioned sync speed. What was your shutter speed set to?
     
  4. Socrates

    Socrates TPF Noob!

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    I haven't had that problem since the sixties. What camera today will allow that error to occur? Besides, the symptoms should be different - a properly exposed rectangular slit but the surrounding area dark.
     
  5. Socrates

    Socrates TPF Noob!

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    Where is the flash located relative to the camera lens?

    Were you taking the shots rapidly without allowing the flash head to recharge?
     
  6. John_Olexa

    John_Olexa No longer a newbie, moving up!

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    Thats what I am thinking.
     
  7. Sw1tchFX

    Sw1tchFX TPF Noob!

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    The PC sync doesn't limit your shutter speed like TTL does. She was shooting at too quick of a shutter speed.

    That doesn't matter. The whole image overall would just be underexposed because the strobes wouldn't have enough time to recycle. You also wouldn't be getting that kind of falloff unless the strobe was flagged, or your sync speed was too high, and I really doubt it was flagged.
     
  8. crystal_lynn

    crystal_lynn I am sure I sound childish

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    I was using 4.6 at 1/250 I believe. There was plenty of time to recycle. So I think Switch is correct, since my other shoots were adults I used a slower shutter. I'll have to check and see...

    BTW the main was about 3 feet to the left about 6 inches forward pointing directly right. The fill was about 5 feet in front at a 45 degree angle to her.

    I was also playing with the strobe settings to get one to be half the power of the other, but since I kept getting the shadow I got frustrated and the whole shoot just went down hill...
     
  9. Sw1tchFX

    Sw1tchFX TPF Noob!

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    Yeah, check your exif, 1/250th is your max sync, but the image says otherwise.
     
  10. crystal_lynn

    crystal_lynn I am sure I sound childish

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    I checked and I was using 5.0/250 with my 18-55.

    Ok so we figured out the black shadow, but what about the over and under exposure on some photos?
     
  11. Village Idiot

    Village Idiot No longer a newbie, moving up!

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    What lights are you using and how were you triggering them? Some triggering options can change your max sync speed as well as some lights are rated to fire at lower than your camera's max sync speed.
     
  12. crystal_lynn

    crystal_lynn I am sure I sound childish

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    The lighting set I have is a Square Perfect SP3500.
     

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