If you find the projected Image is wider at the top/bottom of the screen when using FUDONI 9000L Projector, this image deformation is called keystone image and is due to the projection angle not being perpendicular to the screen. Here is the solution to correct the iamge into rectangle again.

To correct the image deformation, you can use the FUDONI 9000L Projector’s inbuilt keystone function to adjust the image till the image is square.

How to fix the image distortion on FUDONI 9000L Projector

As shown in the picture below, there is a knob on the top of lense, this is for you to manually realize keystone correction. Rolling this knob and it will restore the distorted image to a rectangular or square shape on the screen.

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