Question about Nikon D90 Digital Camera with 18-105mm lens

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Nikon D90 rear curtain sync will shoot flash twice

Hi, I just got a new Nikon D90. When I try to shoot using a slow rear curtain sync I get two flash shots, one at the beginning of the exposure and another at the end. Bottom line, when shooting moving objects I don't get the moving effect 'cos the first flash freezes the image giving the illusion the object is moving backwards (as if I was using a front curtain sync) .
Any suggestions on how to prevent this first flash burst and leave only the flash shot at the end of the exposure?

P.S. This was using manual controls.

Thanks

Alberto Aristeguieta

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  • alenaran Mar 14, 2009

    it's off....

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That is most likely the TTL preflash and should not show up in your final exposure.

Try setting the flash control to manual (e2 under the Bracketing/Flash menu). That should give you only the one flash at the end.


Aaron Gum

Posted on Mar 15, 2009

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I also thought that this was a problem, but it isn't. The first flash you see actually fires before the curtain opens. It is a pre-flash that helps measure the intensity of the flash needed. It does not show up in your photo. The second flash is the actual flash that takes your picture.

Posted on Jun 18, 2009

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Does the D90 have a red eye reduction feature? If so be sure it's off. That could cause the initial burst.

Posted on Mar 14, 2009

  • Jeff Marcus Mar 14, 2009

    Does the D90 have a red eye reduction feature? If so be sure it's off. That could cause the initial burst.

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The first flash measures the distance the second flash is the real flash
Oh you can turn it off in your menu go to flash/bracketing.

Posted on Feb 11, 2015

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