Success PC Port output on HVL-F7S (Sony NEX) without PREFLASH!!!

Started May 21, 2012 | Discussions thread
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fabianbono
fabianbono OP Regular Member • Posts: 190
Re: Success PC Port output on HVL-F7S (Sony NEX) without PREFLASH!!!

madzazulu wrote:

I meant this is only non TTL ?.

Yes, this solution for sure is not TTL.
Actually if you look on HVL-F7S specs, is not TTL neither....

And I'm learning from Zack Arias workshops to use full manual solution, so no need TTL, just manual settings.

j13l wrote:

Great idea.

But, the use of an opto-isolator would be safer for the camera. (eg MOC3030 + a resistance for LED)
Some flash have high voltages. http://www.botzilla.com/photo/strobeVolts.html

Thank you for your search.

Yes, I know that, but I built this based on my needs only.

My YN560II is low voltage strobe, and my older flash (a Braun BC31) that use to be high voltage, I already include the optoisolator circuit inside one year ago.
So no risk (for me)!

Every one can improve for sure this solution.

Actually I want to modify some hot shoe to attach in the top of the flash, then an small WLL transmitter can be attached directly on flash body.

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