Q: After performing calibration, the picture is not straight on the wall!
It means you did not place the projector on a perfectly level surface. Please place the projector on a level surface and calibrate again.
If that doesn’t work, your wall may not be at 90° from the floor. Do this:
- turn off the Automatic Keystone Correction
- tilt the projector yourself, such that the picture is straight on your wall
- turn back on the Automatic Keystone Correction.
The projector will remember this as the “straight” angle.
Q: Will the projector keep the correction, if I turn off automatic correction?
No, the correction is turned off.
Q: Does the picture quality suffer when correction is applied?
Yes there is a small degradation of sharpness when correction is applied, but it will not be very apparent when watching your media content. For the best picture quality it's always advisable to physically put the projector in the front/center of your wall.
Q: What about projecting on my ceiling? Do I need to do anything special?
No. The projector will figure out when you're projecting on the ceiling and apply the appropriate correction to make the picture straight on your ceiling above instead of on a wall in front.
Q: Does this work with HDMI or USB-C video input?
Only 4-corner correction, digital zoom, and Bluetooth audio don't work for external video.