Jump to content

Alvaro Velloso

Member Since 22 Mar 2006
Offline Last Active Apr 04 2014 03:34 PM

Posts I've Made

In Topic: iTTL Protocol

03 April 2013 - 06:10 PM

Hi all,


I finally found what I was looking for. Not need to hack it anymore.

The protocol is a little bit more complex than I expected, but still feasible to implement.





I'm developing a strobe with special features and this protocol may be a good adition in the future.


All the best, Alvaro

In Topic: Diy Led underwater flash strobe

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

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

In Topic: Diy Led underwater flash strobe

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 :-

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

Cheers !