[QUOTE=Mike Garrett;22958933]Quote:Originally Posted by Ilya Volk
I am building a hush box for X550R. I want to make sure I have the right lens shift calculations so that I don;t make a huge mistake. Any help would be great. I called JVC and they were not helpful over than saying the projector had an 80% vertical lens shift. The projector will be almost 0% horizontal shift.
My ceiling is height is 142"
The Hush Box height is planned at 119.5 from center of lens. The drywall is not up and it can be lowered to optimal height.
133" Zero Edge Screen Innovations 16:9 Screen
65.3" Height of screen
Bottom of Screen 36" off of floor
Not sure i calculated correctly
-80% vertical shift on JVC
-Bottom of Screen at 36in
-Screen 65 inch height
-Top of screen 101"
.80x65.3=52.24" shift range from middle of screen?
Middle of screen: is 32.65"(half total height) plus 36"(height of bottom)=68.65 inches
Shift from Middle of screen 68.65 plus 52.24"(80%)
120.89 max height