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FORUMS General Gear Talk Flash and Studio Lighting 
Thread started 04 Apr 2008 (Friday) 15:38
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Dumb question on eTTL-II

 
bbbig
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Apr 04, 2008 15:38 |  #1

Now that I've picked up a 580EX II, I'm loving the eTTL-II with my old 430EX (99.9% indoor flash shooting). Really, I probably will get rid of my Vivitar 285HV at this rate.

Then it occurred to me. How do I go about using my Sekonic L-358 now? Before 580EX II, for setting up the shot, I would have the sync cord going from an eBay radio trigger on my camera to the light meter, then trigger from the light meter to measure the lights. Now that eBay triggers are no longer being used, can I run the sync cord from 580EX II's PC port to L-358 to trigger the flash? (haven't tried this myself yet - yes I know I should RTFM for 580EX this weekend) What's the quick answer?

Thanks.


Roy

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Curtis ­ N
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Apr 04, 2008 17:24 |  #2

bbbig wrote in post #5260674 (external link)
can I run the sync cord from 580EX II's PC port to L-358 to trigger the flash?

Yes, but only if you're using manual flash.

You can also use the Sekonic in cordless flash mode and hit the test button on the flash unit.


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T2000
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Apr 04, 2008 17:30 |  #3
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FYI, You can't use a light meter to take a reading of multiple Canon flashes. The light signal emitted to fire whichever unit is a slave will cause the light meter to register before the actual flash.




  
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PacAce
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Apr 04, 2008 21:12 |  #4

T2000 wrote in post #5261393 (external link)
FYI, You can't use a light meter to take a reading of multiple Canon flashes. The light signal emitted to fire whichever unit is a slave will cause the light meter to register before the actual flash.

But, as Curtis said earlier, if the EX flashes are in manual mode, you won't have a problem metering them with the flash meter. Besides, it only makes sense to meter them when they are in manual mode. ;)


...Leo

  
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bbbig
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Apr 04, 2008 22:50 |  #5

T2000 wrote in post #5261393 (external link)
FYI, You can't use a light meter to take a reading of multiple Canon flashes. The light signal emitted to fire whichever unit is a slave will cause the light meter to register before the actual flash.

Good point - I didn't think about the eTTL pre-flash.


Roy

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Dumb question on eTTL-II
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