If you have Cannon 500d you know already that it doesn't have a external mic jack. But you can add one within a couple hours. XCFloresX photography
does an awesome job of this mod on a youtube video. Watch his video first!
My instructions are just a specific case for my camera and the 3.5mm jack I chose to use. I have the Asian model not the Rebel. Note:
Make sure you get all the screws out before you remove the back case. The back case comes off quite easy. My camera had a screw hiding below a sticker.
When you take the back cover off be careful not to damage the ribbon attached to the circuit board. Tools:
Small Philips screwdriver - make sure it fits properly in the head, these little screw heads will strip out easily.
Small Flat screwdriver - to pry off the back cover.
Hot Knife or a small saw, something cut plastic
Small file or Dremel
3.5 or 2.5 2 pole audio jack