NikonGear'23
Gear Talk => What the Nerds Do => Topic started by: CardBoardBoxProcessor on March 22, 2018, 03:07:42
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Hello, I was wondering how the signal in the USB triggers work. I see diagrams labeling what pin does what as far as the USB cable is concerned. To cause the shutter to fire do I simply complete the circuit between the shutter wire and the ground wire? any specific voltage?
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If you are doing DYI the typical 10 pin connector is likely to be easier that working with USB, unless you are familiar with USB.
The 10 pin is simple - just short pin 4 to pin 6.
Here is the pinout:
1 – Data receive
2 – Battery voltage
3 – +5V regulated, meter on
4 – Shutter release signal Fully depressed release button
5 – Shutter Release Pulse to Second Camera
6 – Signal Ground
7 – Power Ground
8 – Data transmit
9 – Activate signal. Half depressed release button
10 – Not connected
This article is a good place to get started and has a pinout diagram:
http://www.alldigi.com/2010/04/making-a-nikon-camera-remote-control-release/ (http://www.alldigi.com/2010/04/making-a-nikon-camera-remote-control-release/)
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Hello, I was wondering how the signal in the USB triggers work.
A simple way would be to buy a cheap USB release unit and disassemble, maybe use some of the connections. I haven't done this with a USB release, I suspect you would need an oscilloscope to identify the signals, in order to understand and replicate them. I very much doubt it will be a matter of shorting two of the USB wires from the camera. You may be able to make a connection in the remote release and do it from there. I would expect a signal to be generated to change the 'state' of the release command from low to high. Bit like sending a Morse code message rather than simply pressing a bell push.
Remember there is the half release (focus etc.) and full (shutter) release.
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A simple way would be to buy a cheap USB release unit and disassemble, maybe use some of the connections. I haven't done this with a USB release, I suspect you would need an oscilloscope to identify the signals, in order to understand and replicate them. I very much doubt it will be a matter of shorting two of the USB wires from the camera. You may be able to make a connection in the remote release and do it from there. I would expect a signal to be generated to change the 'state' of the release command from low to high. Bit like sending a Morse code message rather than simply pressing a bell push.
Remember there is the half release (focus etc.) and full (shutter) release.
this is what I am doing right now. I wanted to make a grip for my Df :o :o :o
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this is what I am doing right now. I wanted to make a grip for my Df :o :o :o
Hope you are writing it up with some pictures too, please. ;D
I'm not currently interested in USB release because my main cameras are all ten pin but would be very interesting. I did make a sensor based release some years ago but didn't really get beyond development stage. ::)
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Just for info.:
Here is how we did it by using a remote control and relocating the IR emitter to the grip on a Nikon 1V1
http://nikongear.net/revival/index.php/topic,479.msg3580.html#msg3580
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Thank you Erik, fascinating! ;D
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Thanks ;) Yes the rest of that thread is also quite a fun re-read, modifying the FT1 for adapted MF lenses,,,
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Thanks for the advice. Got a sound sensor firing the camera via optocoupler now. Really nice and simple