Installation, Adjusting the projector zoom / focus, Adjusting projection image size – NEC LT10 User Manual
Page 15: Nglish, Focus ring zoom ring, This graph is for user’s reference only, Screen (diagonal) screen size distance

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Focus Ring
Zoom Ring
Adjusting the Projector Zoom / Focus
You may adjust zoom ring to zoom in or out. To focus the image,
rotate the focus ring until the image is clear. The projector will
focus at distances from 3.94 to 32.81 feet (1.20 to 10.0 meters).
Adjusting Projection Image Size
68.9"
(175.1cm)
114.9"
(291.8cm)
137.9"
(350.2cm)
183.8"
(466.9cm)
229.8"
(583.7cm)
32.1"(81.4cm)
80.2"(203.6cm)
133.6"(339.3cm)
160.3" (407.2cm)
213.8"(543.0cm)
267.2"(678.7cm)
3.94'
32.81'
26.25'
19.69'
16.40'
9.84'
(1.2m)
(10.0m)
(8.0m)
(6.0m)
(5.0m)
(3.0m)
27.6"
(70.0cm)
Screen
(Diagonal)
Screen
Size
Distance
This graph is for user’s reference only.
Installation