Optoma ZU820TST User Manual page 20

SETUP AND INSTALLATION
Lens Shift Range
1.6x/1.15x lens models lens shift range
Note:
a) ΔH: The lens shift range in horizontal direction when the lens is at the center.
b) ΔV: The lens shift range in vertical direction when the lens is at the center.
c) ΔH0:The lens shift range without vignetting in horizontal direction when the lens is at the top center or the
bottom center.
d) ΔV0:The lens shift range without vignetting in vertical direction when the lens is at the middle right or the
middle left.
e) V: Height of the projected image.
f) H: Width of the projected image.
g) Projected image.
h) When the lens is shifted beyond the described range of operation, screen edges may become darker or
images may become out of focus.
i) The calculation is based on 1/2 image width and 1/2 image height.
20 English
1.26x lens models lens shift range