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Archive 2012 · 5D Mk III
  
 
krieves
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p.1 #1 · 5D Mk III


Does anyone have a issue with the sync speed on a 5D MkIII? Mine seems to have a problem at 1/200th. There is a faint vignette from the shutter that visible when shooting on a white BG. At 1/160th, it goes away.


Jul 31, 2012 at 06:25 PM
Monito
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p.1 #2 · 5D Mk III


krieves wrote:
Does anyone have a issue with the sync speed on a 5D MkIII? Mine seems to have a problem at 1/200th. There is a faint vignette from the shutter that visible when shooting on a white BG. At 1/160th, it goes away.


Well, you could, if you like, help us, if you want to, by telling us how you are synching the flash and which flash is it.

Alien Bees, 600EX, 580EX, cable sync off camera, Pocket Wizards, Cactus, optical slave, optical sync via Canon system, hotshoe, ... ?

But only if you really want to.




Jul 31, 2012 at 06:31 PM
slee915
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p.1 #3 · 5D Mk III


read the part on propagation delay

http://neilvn.com/tangents/2010/08/02/high-speed-flash-sync/



Jul 31, 2012 at 06:48 PM
 

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krieves
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p.1 #4 · 5D Mk III


Sorry, I'm using Pocket Wizard Plus II's to trigger Alien Bee 1600s and 800s.



Jul 31, 2012 at 06:52 PM
krieves
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p.1 #5 · 5D Mk III


Thanks for the article. It's funny, I never noticed the problem with my 7D.



Jul 31, 2012 at 06:55 PM
elader
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p.1 #6 · 5D Mk III


I trigger AB800s with PWII and the 5D mkIII - I **CANNOT** use 1/200th - I get a black area along one side of the frame. I can however use it at 1/200th with a 580EX on the camera. I have not tried it at 1/200th with a PWII and a 580EX.


Aug 01, 2012 at 08:51 PM





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