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FORUMS Photography Talk by Genre General Photography Talk 
Thread started 07 Sep 2013 (Saturday) 20:59
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How to "write w/ light" but not blur the writer??

 
Houston1852
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Sep 07, 2013 20:59 |  #1

I'm just beginning to experiment with "light writing" but I'm not sure how to get the effect I'm looking for. I saw an article in "Practical Photography" magazine where the subject was writing a word with a sparkler. They used an off camera flash midway through the exposure to capture the person doing the writing. I tried this, but my subject is still blurred. Can somebody please tell me what to try to get the person doing the writing to be in focus and not just a motion blur?




  
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Curtis ­ N
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Sep 07, 2013 21:37 |  #2

It needs to be completely dark, so the only light is the sparkler and the flash.
You'll probably still get some ghosting of the subject from the light of the sparkler.


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tonylong
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Sep 07, 2013 23:31 |  #3

Let's see...how to get the flash to fire in the middle of the exposure? Or, as is normal, the flash is either "first curtain" or "second curtain", are you saying that the flash is too prolonged and so you get the blur?


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Luxornv
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Sep 08, 2013 00:19 |  #4

I would try stacking images. Get the light on one shot, and then get the writer in another shot at different settings to avoid blur.

I'll also say I have no experience doing this, and this is how I would approach it if I tried it.


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Foodguy
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Sep 08, 2013 00:24 |  #5

Fire the flash manually at some point during the timed exposure.

That's how I'd do it with studio strobes (and it would be easy to do). I'm not sure of the procedure to do this with an on-camera flash.


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Sep 08, 2013 00:45 |  #6

Lower your ISO, and use a smaller aperture...darkens the areas illuminated directly by the source used for 'light writing', so that the flash is the most significant contributor of illumination of the writer when the flash is fired manually.


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Dan ­ Marchant
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Sep 08, 2013 04:33 as a reply to  @ Wilt's post |  #7

Take the flash off the camera and fire it manually during the long exposure.


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Houston1852
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Sep 09, 2013 15:09 |  #8

I tried it using my 5d2, then about 15 seconds into the 30 second exposure I fire a flash from my 430 speed lite on my t2i. That's basically all the article said to do. Maybe it wasn't dark enough.




  
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Foodguy
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Sep 09, 2013 16:00 |  #9

It needs to be pretty dark. Like **Really** dark ;)


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How to "write w/ light" but not blur the writer??
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