NEC UM383WL User Manual page 95

6. Installation and Connections
(Example) When using to project on a 100" screen
According to the "Tables of screen sizes and dimensions" (→ page 81), H = 84.8"/215.4 cm, V = 53.0"/134.6 cm.
Adjustment range in the vertical direction: the projected image can be moved upwards 0.03 × 53"/134.6 cm ≈
1.6"/4.06 cm (when the lens is at the center position).
Adjustment range in the horizontal direction: the projected image can be moved to the left or right 0.02 × 84.8"/
215.4 cm ≈ 1.7"/4.27 cm.
* Figures differ by several % because the calculation is approximate.
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