What does a utility program do

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984 0 0 0 19 8c2. Q: What does the CHDK program do? A: CHDK enhances the capabilities of your camera in a non-destructive, non-permanent way. Motion-detection trigger – automatically fires camera on motion detection. Fast enough to capture lightning strikes. Fully customizable CHDK display, info placement, user-colors, fonts in menus, etc.

And other features too numerous to mention here. See the CHDK Firmware and Allbest Firmware usage pages for a more complete overview. These features work on all camera models supported by CHDK. CHDK will add the required functionality. New features are accessed through CHDK-specific menus,  rather than the default camera menus.