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Diy Led underwater flash strobe


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#21 vividhousings

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Posted 26 October 2011 - 06:27 AM

@Packhorse:

The pins on the hot shoe are simply shorted. Take care of the max. voltage for your camera's hotshoe, though.
I don't know what LED you're using, but you might try the IR led for remote controls. My Yongnuo flashes, for example, are easily triggered by TV remote, even from one meter or more...
Vivid Housings
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Underwater housings for DSLR cameras
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#22 Alvaro Velloso

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Posted 23 May 2012 - 04:29 PM

Not much help unless you are a boffin but it seems that pins 2,3,4 & 5 are for digital serial communication with ETTL strobes rather than simple high/low status signals. They communicate stuff such as aperture, focal length, shutter speed. ISO etc. Top left is the data clock, top right & bottom left carry the data.


EDIT - Here you go :-
http://kzar.net/wiki...onE-TTLProtocol



Hello, do you know where I could find iTTL specifications for Nikons?

Cheers !

#23 Alvaro Velloso

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Posted 25 May 2012 - 08:52 AM

Yes they are trigger like flashes (short duration pulse ) the caps are regulars nikonos protectors caps.

Thanks and happy dives


Hello,
Excellent job.
Any ideas to increase pulse width up to 20ms (1/50)? I can use a small macroprocessor for doing it.
Cheers,
Alvaro

#24 betti154

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Posted 11 July 2012 - 07:32 PM

Cool stuff.
Damien Siviero
Canon 5DmkIII + 7D. Aquatica Housing. Ikelite + Inon Strobes. Canon + Tokina Glass.
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#25 uwdiy

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Posted 14 November 2012 - 10:54 AM

Alvaro
Yes you can control the amount of light by adjusting the pulse duration

#26 Eddcar

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Posted 25 April 2013 - 07:32 AM

Thanks for the inspiration, finally can get rid of the electrical cables that fail after several months of use

http://www.flickr.co..._hk/8681268490/