DPReview.com is closing April 10th - Find out more

How to trigger 2 cameras simultaneously ?

Started May 10, 2014 | Questions thread
Brian F Flint
Brian F Flint Regular Member • Posts: 184
Re: How to trigger 2 cameras simultaneously ?
1

The Panasonic GH3 and GH4 and other Panasonic cameras use a wired remote control.

The remote control unit is DMW-RSM1 it has a 2.5mm jack with 4 connections on it. As far as I can tell you need to connect to at least 3 of the connections

This site gives a lot of information about how it works
http://www.robotroom.com/Macro-Photography-2.html

It should be possible to build a unit which will allow one push-button to activate two cameras. I am an electronics engineer and the following is what I think you would need

2 x 2.5mm jack connectors ( same as used on the DMS-RSM1 )
2 x small signal n-p-n transistors ( BC337 or similar )
1 x push button switch ( it has two contacts on it which short together when the button is pressed )
2 x 1.8k resistors
2 x 10k resistor
2 x 39k resistor
I can give you more information on how to connect these components if you wish. On testing the unit it may be found some of the resistor values need adjusting.

 Brian F Flint's gear list:Brian F Flint's gear list
Panasonic Lumix DMC-ZS60 Sony RX10 III Canon MP-E 65mm f/2.5 1-5x Macro
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow