Why is the project screen coming out in a trapezoidal shape?

I bought a project and hung it on the ceiling.

When I turned it on, the screen came out in a trapezoidal shape, so why is that?Do I need to get

as?

268 2017-03-27 Gentleman

If you shoot from the front, it comes out in a rectangle, but if you shoot from the ceiling or the floor, it comes out in a trapezoidal shape.
The vertical keystone function is to correct that.
It's on the menu.

Gentleman 8 years ago 0

A. 2

You can adjust the vertical keystone by entering the project's settings menu.

Gentleman 8 years ago 0

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