So I have the Cactus Wireless Transmitters. Occasionally I've had great luck syncing them at 1/800. I'm using a 580EX and a 430EX, and am wondering what the trick is to get them to sync over 1/200 of a second? Thanks. 
Mario. Senior Member  624 posts Likes: 1 Joined Aug 2006 Location: Lone Tree, Colorado More info | Jul 23, 2008 10:16 | #1 So I have the Cactus Wireless Transmitters. Occasionally I've had great luck syncing them at 1/800. I'm using a 580EX and a 430EX, and am wondering what the trick is to get them to sync over 1/200 of a second? Thanks. Mario M. | Black Macbook 2.4/ 4GB | 40D | 350D| 17-40 f/4L | 70-200 f/4L | 580EX | 430EX
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PacAce Cream of the Crop  26,900 posts Likes: 40 Joined Feb 2003 Location: Keystone State, USA More info | Jul 23, 2008 10:27 | #2 You can't. The max sync speed possible with your camera is 1/250. But in practice, the max sync speed may be limited by the flash/strobe, remote trigger devices, etc. ...Leo
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tmonatr Goldmember  1,585 posts Joined Nov 2006 Location: Tennessee More info | Jul 23, 2008 10:57 | #3 The highest I can go with my Cactus V2's is 1/200. No way you can go 1/800. You may have shot at 1/800, and the flash fired, but it definitely wasn't synced. Tim
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Jul 23, 2008 11:34 | #4 https://photography-on-the.net/forum/showthread.php?t=541019: Similiar situation in this other thread. Rich
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Mario. THREAD STARTER Senior Member 624 posts Likes: 1 Joined Aug 2006 Location: Lone Tree, Colorado More info | Jul 23, 2008 17:38 | #5 tmonatr wrote in post #5968439  The highest I can go with my Cactus V2's is 1/200. No way you can go 1/800. You may have shot at 1/800, and the flash fired, but it definitely wasn't synced. Try this. Indoors, point your flash at the wall and take a series of shots, raising your shutter speed each shot, beginning with 1/125. I did this and at 1/200 it was fine, at 1/250 started seeing the shutter. That makes sense, I guess for those photos I was just exposing decently for ambient lighting. Ooops on my part, thanks for the clarification! Mario M. | Black Macbook 2.4/ 4GB | 40D | 350D| 17-40 f/4L | 70-200 f/4L | 580EX | 430EX
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