Keystoning refers to the situation where the projected image becomes a trapezoid due to angled projection. This tip will show you in detals how to use the keystone correction
After the Keystone page is displayed, press up button to correct keystoning at the top of the image. Press down button to correct keystoning at the bottom of the image. Press left button to correct keystoning at the left side of the image. Press right button to correct keystoning at the right side of the image.
Tips when using keystone correction:
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