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IXUS170 / ELPH170 Notes
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This is a blind port, use at your own risk!

Porting thread: https://chdk.setepontos.com/index.php?topic=12471.0

To enter CHDK <ALT> mode use the [>] Play button.
This may be changed to Help in the options.

This camera has only ND filter, no adjustable aperture.

Tested:
https://chdk.setepontos.com/index.php?topic=12471.msg131041#msg131041
https://chdk.setepontos.com/index.php?topic=12471.msg132036#msg132036
overrides - OK
RAW/DNG   - OK
scripts   - OK