Have you ever taken a picture without using your hands? No, I’m not talking about setting the timer and having the shutter go off after a predetermined amount of time – you still use your hands for that. Nor does using your nose to press down the button count (why would you even think that?). Well, there are certain times when you need your hands to be doing something else, and to have the picture taken when you’re ready, not whenever the timer goes off. For these occasions, you need a foot pedal.
The great thing is that such a pedal can be constructed with a little bit of know-how and about $30 worth of parts. You just need a keyboard sustain pedal, a stereo cable and a mono plug. You’ll just solder the mono plug onto the end of the cable, then plug it into the pedal and your camera.
For the complete instructions and a parts list, you’ll want to check out the guide here.