If you try to reflect an image onto a bed sheet or the side of the garage, ... For instance, a ratio of 1.5:1 would produce a 5-foot-wide image when the projector was 7.5 feet from the screen ...

A projector screen is essential if you want the best image from your projector. Here's a guide on how to choose the right one ...

This is because all projectors need to reflect off a surface to be seen at all. That surface does a combination of reflection and absorption, both of which are key in how the image appears to you.

Most projectors require roughly 1 inch of distance from the wall for every inch of diagonal screen size. For a 100-inch image, you’ll need at least 8 to 10 feet between the screen and the projector.