AVS Forum Special Member
Join Date: Jun 2005
Location: Northern, VA - Washington, DC
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When the projector is mounted upside down, the center of the lens needs to be about 3" to 5" above the top of the screen. The W1070 has lens shift so it can be adjusted a couple of inches up or down from that point. So perhaps 2" to 7" as a typical range of motion using lens shift.
3" to 5" is a pretty typical height range and the inclusion of that lens shift means you don't have to be exactly exact.
Middle of lens to top of image is correct.
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