Problems syncing my studio flashes. (pics)

Discussion in 'Beyond the Basics' started by Enem178, Jun 4, 2010.

  1. Enem178

    Enem178 TPF Noob!

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    Ok before I got my wireless flash triggers I was of course using a sync cord and I would set my 40D to a shutter speed to 1/250 and everything seemed to be fine. After I got my wireless triggers (with the same settings) I noticed that part of the frame would be drastically under exposed. The under exposed part was in direct relation to the bottom of the camera, meaning in landscape mode it would be on the bottom and in portrait mode it would be on either side depending on if I rotated the camera clockwise or counter clockwise.

    Actually now that I look at it, even with the sync cord it was slightly under exposed but with the triggers its drastically under exposed. I set the shutter to 250 because I read that's the 40d's sync speed. My question is, why is it only under exposed on one side and why is it worst with the wireless triggers??? Im a noob with the studio stuff so forgive me if im doing something obviously wrong. Check out the pics and thanks guys!!

    With Sync Cord
    [​IMG]

    With Wireless Triggers
    [​IMG]
     
  2. Enem178

    Enem178 TPF Noob!

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    Dresses?
     
  3. tirediron

    tirediron Watch the Birdy! Staff Member Supporting Member

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    If you hadn't confirmed you were shooting at sync speed, I'd say your shutter-speed was too high. I have to admit I'm confused on this one...
     
  4. Enem178

    Enem178 TPF Noob!

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    No someone replied and put a link up there to dresses for some reason!! Obviously he deleted that post, so just ignore that comment.

    Now if a camera has a certain flash sync speed should'nt you set your camera to that speed no?? Also why would it be worst with the triggers??
     
  5. Don Kondra

    Don Kondra Been spending a lot of time on here!

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    That's the max sync speed, just lower it to 1/200.... there may be a very small delay with the triggers.

    Cheers, Don
     
  6. Enem178

    Enem178 TPF Noob!

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    O ok, Actually I lowered it down to 160 and that seemed to take care of the problem but I thought something might have been wrong if i couldnt use 250. Thanks Don
     
  7. Don Kondra

    Don Kondra Been spending a lot of time on here!

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    Forgot to mention, lots of trigger problems can be traced back to low batteries....

    Cheers, Don
     
  8. Enem178

    Enem178 TPF Noob!

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    cool, thats easy enough to check..thx
     
  9. Garbz

    Garbz No longer a newbie, moving up!

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    More expensive triggers often have shorter processing delays. You won't get near your sync rate on cheap triggers.
     
  10. Enem178

    Enem178 TPF Noob!

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    Ok got you. Im using the yongnuo rf 602's so that's probably the problem. Like I said earlier I had to lower it to 1/160 and that seems to do the trick.
     
  11. katerolla

    katerolla No longer a newbie, moving up!

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    I had the same problem over the weekend I stared with 1/250 went down to 1/125 and that seem to help but not every time so I used 1/60
     
  12. Enem178

    Enem178 TPF Noob!

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    Hey Katerolla, were your pics underexposed in the same location? Just curious..
     

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