When projecting from the ceiling, align the lens as closely as possible with the top of your screen:

Calculating Image Size and Projection Distance

The distance between the projector and the screen determines the actual image size. To determine the exact distance required for a particular image size (or to determine the size of an image at a particular distance), use the formulas given below. (Remember that the size of the image can also be changed by rotating the zoom ring; see page 47 for more information.)

Positioning the Projector

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