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Lens Shift Range
The examples show the location of the image position in the lens. The lens can be shifted within the shaded area as shown using the
normal projection position as a starting point. Note: If lens is shifted in two directions combined, max. range in either direction cannot be
obtained due to rounded off area near edge of lens. (Example: shift up and left). See diagrams below:
Lens Option 1: Throw Distance 1.2 - 1.4 x Width of Screen
When only Vertical or only Horizontal Shift is used:
Maximum. Vertical Shift = 60% of screen height (.6 x height)
Maximum Horizontal Shift = 25% of screen width (.25 x width)
Amount of Horizontal Shift when Vertical is @ maximum:
Maximum Horizontal Shift = 5% of screen width (.05 x width)
Amount of Vertical Shift when Horizontal is @ maximum:
Maximum Vertical Shift = 10% of screen height (.10 x height)
Explanation:
•
0% shift is when the image center is even with the projector lens center - also known
as zero-degree projection-angle
•
Shifting beyond the maximum values above will cause image loss in corners or edges
•
When Vertical Shift is maximum, Horizontal shift can only be adjusted 5% left or right
in example above
•
The maximum diagonal movement of the image is expressed as shift in 2 directions,
this is the maximum combination of
adjustment (ex. Up & Left, Down & Right, Up & Right, Down & Left)
•
Throw distance does not affect image quality
•
Lens shift does not affect image quality if within above limits
Lens Option 2: Throw Distance 1.4 - 1.77 x Width of Screen
When only Vertical or only Horizontal Shift is used:
Maximum. Vertical Shift = 60% of screen height (.6 x height)
Maximum Horizontal Shift = 25% of screen width (.25 x width)
Amount of Horizontal Shift when Vertical is @ maximum:
Maximum Horizontal Shift = 5% of screen width (.05 x width)
Amount of Vertical Shift when Horizontal is @ maximum:
Maximum Vertical Shift = 10% of screen height (.10 x height)
Explanation:
•
0% shift is when the image center is even with the projector lens center - also known
as zero-degree projection-angle
•
Shifting beyond the maximum values above will cause image loss in corners or edges
•
When Vertical Shift is maximum, Horizontal shift can only be adjusted 5% left or right
in example above
•
The maximum diagonal movement of the image is expressed as shift in 2 directions,
this is the maximum combination of adjustment (ex. Up & Left, Down & Right, Up &
Right, Down & Left)
•
Throw distance does not affect image quality
•
Lens shift does not affect image quality if within above limits
12
Example: 56" x 100" Screen
TD = 120" to 140" lens to screen
0.60 X 56" = 33.6" up or down
0.25 X 100" = 25.0" left or right
0.05 X 100" = 5.0" left or right
0.10 X 56" = 5.6" up or down
40% or 40"
40% or 40"
Normal Projection Position
Example: 56" x 100" Screen
TD = 140" to 177" lens to screen
0.60 X 56" = 33.6" up or down
0.25 X 100" = 25.0" left or right
0.05 X 100" = 5.0" left or right
0.10 X 56" = 5.6" up or down
48% or 48"
48% or 48"
Normal Projection Position
90% or 50.4"
90% or 50.4"
104% or 58.2"
104% or 58.2"
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