The first thing to know is what really there are no magic or complex digital protocols associated with shutter release; it’s a simple switch that completes the circuit — two touches of the wire would do the trick. No need to worry about voltages, power supplies or electronic circuits — just a switch. From the side of the camera, this is standard 2.5mm connector for stereo jack.
My Canon Rebel T4i (reviewed here) can remote focus and shutter release, although yours can only do shutter release. Since most cameras have autofocus anyway, you might not even need a remote focus button, but I’ll turn it on anyway.
Camera side: 2.5mm plug
2.5 mm used, among other things, on older mobile phones or walkie-talkies to connect an external microphone or earpiece. note that 2.5mm is a little smaller than the more widely used standard plug 3.5mm used in most consumer headphones and cheap speakers. Even though I have a lot of spools of 3.5mm cables, I had to find a small adapter With 2.5 mm by 3.5 mm to connect to the camera. As long as you have a 2.5mm plug to attach to the end of your camera, you can mount something useful.
Creating a trigger
You have several options here:
if you have 3.5mm or 2.5mm plug connection at trigger end and you want to get a real job McGuire, without breaking and soldering original cable, remove the tab from the soda can and use a pair of pliers to bend it in the middle. Slide it firmly onto the base of the plug, then press it against the lug to complete the circuit and activate the shutter. This instructable does a great job of showing you how it’s done, so I’ll just point you in that direction; Except I don’t drink soda (please don’t take this as a smug «I’m so healthy» statement — I make my own beer so I have an endless supply of it!)