How-To Geek

DIY Shutter Release Cable for Canon Cameras

If you have a Canon camera that supports the CHDK firmware, there’s no need to buy an expensive shutter release cable. You can make one for a few bucks with a handful of parts and a sacrificial USB cable.

Over at photo blog Kiss The Asphalt, they share a simple guide to creating your own shutter release cable that works on any Canon camera that supports the aftermarket CHDK firmware. The crux of the simple hack is the fact that you can turn on a feature in the CHDK firmware that turns any button press into a shutter release and it will interpret a pulse down the USB cable as a “button press”. Rig up a button to release a small burst of 5v current down the USB cable and you’ve got yourself a cheap remote trigger.

Hit up the link below for the full guide including pictures and a wiring diagram. Also, if you know of any clever hacks like this for other cameras, share a link or two in the comments.

DIY Shutter Release Cable for Canon Cameras with CHDK [via Hack a Day]

Jason Fitzpatrick is warranty-voiding DIYer and all around geek. When he's not documenting mods and hacks he's doing his best to make sure a generation of college students graduate knowing they should put their pants on one leg at a time and go on to greatness, just like Bruce Dickinson. You can follow him on if you'd like.

  • Published 04/30/12

Comments (1)

  1. Kore

    Did this for my DSLR, but they have the 1.5 mm remote shutter port so it was a lot easier. I even used the exact same toggle button from Radio Shack, but I used a chapstick tube instead of the tin.

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