Trigger a sony nex 5R with wires

Hello to the forum.

I am a survey Engineer and new to pixhawk and to RC General.

I already post the same question here:

http://diydrones.com/profiles/blogs/remote-shutter-for-sony-nex-5n-cam?id=705844%3ABlogPost%3A1925411&page=2#comments

but i don't know

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