Hugo de Wolf
(K=185110) - Comment Date 9/13/2006
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Hi Rashed,
I sometimes have the same thing with my strobes. It happens when I put them together on full intensity. I'm lead to believe it's caused by the heat, which either affects affect the radio frequency devices (transmitter on hotshoe and receiver on the master strobe)triggers them, or, more likely, the IR transmitter / receiver that connects the slaves to the master strobe.
Switching off mobile phones and other electronic equipment such as stereos, and reducing the intensity of the strobes solves the problem.
Also, using fresh batteries for the receiver on the radio receiver plugged in the master strobe solved that problem.
I haven't quite figured out what causes it, and what happens exactly, so I'm keen on hearing what others have to say - has anybody experienced the same thing?
Could it be because of the falcon-eyes RF trigger I use in combination with the Excella Prisma 800ws strobes?
Cheers,
Hugo
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Rashed Abdulla
(K=163889) - Comment Date 9/13/2006
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Thanks a lot dea Hugo but also this is happening to me when this specific one only swithched on alone even with the IF tramisseter on the camera been hidden away.
The IF unit of the flash itself is on the top of the boady almost the rear of the unit, would you think if i cover that with something like tape but still permit a little light to pass through, will help or might damage the unit ?
Thanks again my friend
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Hugo de Wolf
(K=185110) - Comment Date 9/13/2006
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Hi Rashed,
Putting tape over an IF sensor will definitely not damage the unit - with your SSB experience, you surely know the effects better than I do...:) I doubt if it would help, switching on one strobe without any interference from other devices should not cause the flash to go off, unless there's a loose wire / something shortcutting on the circuit board. And considering that your strobes are still quite new, that doesn't sound plausible either - unless that one dropped by accident or got damaged somehow.
The most logical explanation would be that there still is interference by some other device - hard to tell. You could at least try...
Next best thing is to contact your supplier. I still have to do that too...
Cheers,
Hugo
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Rashed Abdulla
(K=163889) - Comment Date 9/14/2006
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Dear Hugo I have just received an email from the manufacturer that internally there is a potential regulator which would reduce the sensitivity of the receiver of the flash.
This means the flash unit has to be opened and the regulator setting be lowered down.
Also the excessive room light would make the receive fire the flash or if the other flashes modeling lights set on maximum and the flashes very close to each other, that would trigger the flash also.
Of course, this what they say and I hope they are right.
By the way my modeling light and the flash power both can be adjusted, this is just for your information’s.
Covering the receiver with a tape will also reduce the sensitivity of its value and it’s of no harm to the receiver itself, as they say.
Thanks again dear Hugo my friend for your assistant
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Hugo de Wolf
(K=185110) - Comment Date 9/14/2006
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Hi Rashed,
Thanks for the information - quite useful! My modelling light and flash power can be adjusted too. The strobes fired without any roomlight too, though, that's why I didn't mention that.
I'll let you know if I find out more...
Thanks and cheers,
Hugo
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