You should have seen how many I had to delete! I just had to leave the shutter open and hope the camera was pointed in the right direction. I have some others but I don't think I'll have them on for a while due to the SD card to computer thing.
This is one way that film cameras can be better, the shutter can remain open without batteries if they are made for it. I usually would connect my digital camera to a power supply to keep it going.