Both 4:3 and 16:9 screens are fully supported with proper aspect ratio control for both type sources using NEC developed
scaling technology. Menu selections have settings for each screen type and aspect ratio control for each source type.
Notes
• For screen sizes not indicated on the projection charts, use the formulas below.
• The ceiling must be strong enough to support the projector and the installation must be in accordance with any local
building codes.
• Distances are in inches, for millimeters multiply by 25.4.
• Distances may vary ±5%.
Formulas
The Projection Formulas use the image width for calculation. Image width is the same for all aspect ratios, only vertical image size
varies. For proper projector placement, determine the image width for a desired screen size. Use the Screen Formulas below to
calculate all screen dimensions. Plug in the image width for “W” in the Projection Formulas.
Refer to the diagrams and charts for popular screen sizes on page 2 and 3.
Note: Tilting the front of the projector up or down by more H=Wx9/16
than 45° from level could reduce lamp life by up to 20%. Diagonal=Wx18.358/16
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Pg 2
Pg 3
Pg 4
Pg 5
Pg 6 & 7
Pg 8
Pg 9
Pg 10
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4:3 Screens
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The following diagrams show the relationship bet ween projector position and the screen. Refer to the chart below for data.
Distances are in inches. For millimeters multiply by 25.4.
Ceiling Mounted Installation
C
Throw Distance
6.9"
Shift Range +
X=Distance from lens to mount ctr
Screen Ctr
Lens Centered
with Mount
Desktop Setup
Note: Lens shift is not available on
C
Throw Distance
GT06RLB & GT10RLB rear lenses, which
should only be used for “zero degree/nooffset” applications.
Screen Ctr
5.3"
Note: Tilting the front of the projector up
or down by more than 45° from level
could reduce lamp life by up to 20%.
Note: For screen sizes not indicated on the chart, use the formulas on page 1.
Note: “NA” means it is outside the screen range for that lens. Refer to “Screen Si zes” in Lens Specifications on Page 1.
The following diagrams show the relationship bet ween projector position and the screen. Refer to the chart below for data.
Distances are in inches. For millimeters multiply by 25.4.
Ceiling Mounted Installation
C
Throw Distance
6.9"
Vertical Position for a 16:9 screen:
The Vertical Position adjustment moves
16:9 image up and down in the unused
Shift Range +
X=Distance from lens to mount ctr
portion of the 4:3 panel. The range of
Vertical Position is dependent on aspect
ratio and 3D Reform used. If 3D Reform
is not used, the approximate range of
Vertical Position is +/-0.167H
(H=Screen Height) when using a 16:9
screen. This adjustment is only available
Screen Ctr
Lens Centered
with Mount
when the projector is set for ‘16:9’, ‘1.85:1’
or ‘2.35:1’ in the ‘Screen’ menu.
Desktop Setup
Note: Lens shift is not available on
C
Throw Distance
GT06RLB & GT10RLB rear lenses, which
should only be used for “zero degree/nooffset” applications.
Screen Ctr
5.3"
Note: Tilting the front of the projector up
or down by more than 45° from level
could reduce lamp life by up to 20%.
Note: For screen sizes not indicated on the chart, use the formulas on page 1.
Note: “NA” means it is outside the screen range for that lens. Refer to “Screen Si zes” in Lens Specifications on Page 1.