Camera Trigger using a Computer Mouse

This creative hack turns an old mouse into a camera trigger. You can buy one from the manufacturer but that isn’t much fun.

“Dave Schlier had a spare oldie (mouse that is) that he recycled into a shutter release cable. Now don’t get me wrong, I don’t think that clicking a mouse is the most affective way to take a shot. But if that what it takes for you computer addicts to take the camera out of the bag, my task here on earth is completed. This is a DIY hack to make a shutter release that will work with Pentax
K110D. It will also work on Pentax and some Canon cameras that use a 2.5mm
(3/32″) stereo monoplug that use the middle and inner pins as separate
contacts and the outer (large) pin as common.”