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FORUMS General Gear Talk Flash and Studio Lighting 
Thread started 27 Jan 2012 (Friday) 12:52
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Wein Safe Sync

 
dba1954
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194 posts
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Location: Western NY
     
Dec 26, 2012 12:21 as a reply to  @ post 13831727 |  #16

i asked this question to Canon support last week for my Canon 5dM2 I just purchased. Their reply was :

Thank you for your inquiry about the hotshoe on the EOS 5D Mark II.
The hotshoe will safely work with trigger voltages up to 6 volts.
I hope this information is helpful to you. Please let us know if we can be of any further assistance with the EOS 5D Mark II. Thank you for choosing Canon.
Sincerely,
Michael
Technical Support Representative


5DMK2, | 50mm f1.4 | 24-105mm f4.0L | 100mm f2.8L | 100mm f2.8L | 70-200mm f2.8L | 70-300mm f2.8L IS | EF 2x II | EF 1.4 II | Kenko's | Sigma EF-500 DG Super flash | Canon 270ex II flash | Canon 430ex III flash

  
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ncjohn
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Oct 17, 2015 22:17 |  #17

Wilt wrote in post #13825185 (external link)
Any CANON dSLR made ever since the 20D was launched (as of 2004 when Canon 20D was launched, and later) is safe to 250v trigger voltage, on both hotshoe and PC terminal ; the Sunpak trigger voltage is <250v (newer units 4v, but some old units have 190v)

I'm replying to this very old thread to say: I just bought a Wein safe-sync for my EOS Rebel XSi, which apparently came out around 2008. Having bought it, I then spaced out and put my Vivitar 3700 directly on the camera instead of using the safe-sync! I took about 10 shots using the flash and it worked fine without using the safe-sync. However, the built-in flash no longer pops up. The trigger voltage of the 3700 is supposedly between 9 and 9.5 volts.
I suppose it could be a coincidence that the built-in flash decided to break right after I put an old flash in the hot-shoe, but I really doubt it.




  
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gonzogolf
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Post edited over 3 years ago by gonzogolf.
     
Oct 17, 2015 22:43 |  #18

ncjohn wrote in post #17749816 (external link)
I'm replying to this very old thread to say: I just bought a Wein safe-sync for my EOS Rebel XSi, which apparently came out around 2008. Having bought it, I then spaced out and put my Vivitar 3700 directly on the camera instead of using the safe-sync! I took about 10 shots using the flash and it worked fine without using the safe-sync. However, the built-in flash no longer pops up. The trigger voltage of the 3700 is supposedly between 9 and 9.5 volts.
I suppose it could be a coincidence that the built-in flash decided to break right after I put an old flash in the hot-shoe, but I really doubt it.

It's likely that you've jammed the micro switch under the hotshoe rail. When it's depressed the popup won't pop-up. Take a straighted paperclip and try to jiggle the switch. Usually that fixes the problem.




  
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ncjohn
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Oct 17, 2015 23:12 as a reply to  @ gonzogolf's post |  #19

Well, look at you! :-D I didn't even know there was one there. (Yes, that fixed it.)

So, I started to delete my previous post, but this is kind of educational in nature, so I'll leave it.

And, having made that many exposures without the safe-sync in place, can I assume that I don't, in fact, need it? The manual for the camera doesn't say anything about it except to say not to use a "high-voltage" flash because "it might not work."

Thanks a lot, gonzogolf.




  
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gonzogolf
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Oct 17, 2015 23:28 |  #20

ncjohn wrote in post #17749868 (external link)
Well, look at you! :-D I didn't even know there was one there. (Yes, that fixed it.)

So, I started to delete my previous post, but this is kind of educational in nature, so I'll leave it.

And, having made that many exposures without the safe-sync in place, can I assume that I don't, in fact, need it? The manual for the camera doesn't say anything about it except to say not to use a "high-voltage" flash because "it might not work."

Thanks a lot, gonzogolf.

You are welcome. Its a common fault.




  
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Wein Safe Sync
FORUMS General Gear Talk Flash and Studio Lighting 
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