If you have Lytro Desktop installed on that computer, and you've used the camera with it, Lytro Desktop will automatically pull the calibration data to a default location. If this is the case, Power Tools should automatically use this default location for calibration and you shouldn't need to specify --calibration-in
as an argument.
If you're running an issue, please copy/paste output from the error and post to the Power Tools forums.
You can manually verify that the calibration data is in the default location:
- OS X:
/Users/username/Library/Application Support/Lytro/cameras
- Windows:
C:\Users\username\AppData\Local\Lytro\cameras
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