* How to keep the camera in continuous shooting mode during the flight?
Either you want to map a large area by moving around during the flight, or want to get the best images, it is best to shoot more pictures than needed with a large memory card. After the flight sort locally or with mapmill.org to select the best images for making the map.
The continuous shooting mode is different for each camera but most are the same. Some cameras can be programmatically controlled such as Canon(CHDK), but the shutter button can also be held down physically to keep the camera in the mode.
This is for use with the [PET Bottle Rig](http://publiclaboratory.org/wiki/pet-bottle-rubber-band-rig)
Instead of using a balled up piece of tape, a pebble, or some other thing to hold down my camera's shutter, I've gone to using a knot. This makes it easy to hold in place, and makes setting it easier. I prefer [a rubber band](http://publiclaboratory.org/wiki/rubber-bands), but tape also holds it down. tape may be more useful for bulging, non rectangular cameras.
My Canon SD1000 needs the [rubber band](http://publiclaboratory.org/wiki/rubber-bands) tripled up to hold it in place:
source: http://publiclaboratory.org/notes/mathew/1-29-2012/using-knot-trigger-cameras
source: http://publiclaboratory.org/notes/mathew/1-29-2012/using-knot-trigger-cameras