| Pin Number |
Pin Name |
Description |
| 3 | GND | Ground |
| 2 | FOCUS | short to pin 3 to focus Canon camera |
| 1 | SHUTTER | short to pin 3 to trigger shutter |
If the camera is in stand-by mode, there is a 3.3V voltage present at the focus wire. The camera can be waken up from stand-by by connecting the focus wire to ground. The trigger inputs can serve as power supply for circuits with a supply current of less than 30µA.

