CHDK-HAB: a CHDK Script for HAB
The latest version of the scripts can be downloaded here:
http://www.francescobonomi.it/sites/francescobonomi.it/files/minihab_21.zip (the script you need to run is loop21.lua)
At the moment, the scripts have been tested on the SD1100 (Ixus 80) only, porting to other cameras shoudl be fairly easy. If you need assistance in this, just contact me.
Before running the scripts, you should follow these instructions in order to set up the camera as the scripts expect it to be.
Some settings (such as resolution and image quality) are just suggestions, some are FUNDAMENTAL, mainly the "ND filter state"