Please check the following points first if the Auto Screen Fit fails:
- Make sure that there’s at least 2.4 inches (6cm) of black or high contrast color border area around the white section of your screen.
- Use a high-contrast surrounding wall if the screen border isn't wide enough.
- Turn off the ambient light before trying the Auto Screen Fit function again.
Refer to the page below for more details:
https://www.benq.com/en-us/business/campaign/golf-simulator-projector/resources/benq-golf-auto-screen-fit.html
For optimal performance of the Auto Screen Fit function on the BenQ AK700ST / AH700ST, please follow these guidelines:
- 16:9 / 16:10 screens: it is recommended to keep the projection angle within 10° and the projector within 2.2 m from the screen.
- 4:3 / 1:1 screens: it is recommended to keep the projection angle within 20° and the projector within 2.2 m from the screen.
