Canon CHDK alternate firmware

The CHDK is a free powerful tool that upgrades the firmware of many Canon Powershots to add some great features. We now convert almost all of the cameras supported by the CHDK, making it a very nice combination for IR shooting.Important features that are relevant for IR photography:RAW file supportFull manual exposure controlsBracketting controlsIntervalometer for remote aerial photographyRead more at http://chdk.wikia.com/wiki/CHDKSome of the CHDK supported cameras that we convert:A2000, A450, A460, A470, A480, A490, A495, A530, A540, A550, A560, A570, A590, A610, A620, A630, A640, A650, A700, A710, A720, Elph 300, S3, S90, S95, G7, G9, G11, G10, G12, SD400, SD450, SD500, SD550, SD600, SD630, SD700, SD750, SD770, SD780, SD790, SD800, SD850, SD870, SD880, SD890, SD900, SD940, SD950, SD980, SD990, SD1000, SD1100, SX100, SX110, SX230IS