I always wanted to do elapsed time video, so instead of hacking the camera firmware, why not create a intervalometer with what I have at hand?
To do so i needed:
1 BC550 Transistor
1 1k Resistor
1,6mm jack with cable hacked of a LANC remote
And last bu not least an Arduíno Board ( used a mega 'cause it was the one i had at hand)
!Please note! If you don't want to take risks with your precious machine please do not try this at home.
Step 1: Make or check the cable
If you have to make the cable simply solder these two and forget the other one.