The InFocus IN138HD presents keystone correction for image alignment. Press the "Keystone" button on the remote control or even the projector and make use of the arrow buttons to adjust the keystone right up until the impression seems rectangular and without distortion. Push the "Resource" button around the remote control https://in13892333.verybigblog.com/27878464/manual-article-review-is-required-for-this-article