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Lens Option 1: Throw Distance 1.57 - 1.95 x Width of Screen
When only Vertical or only Horizont
al Shift is used:
Maximum. Vertical Shift = 90% of screen height (.9 x height)
Maximum Horizontal Shift = 40% of screen width (.4 x width)
Amount of Horizont
al 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)
The maximum shif
t in 2 directions (ex. maximum left and maximum down):
Maximum Vertical Shift w/ Horizontal = 40% of screen height (.4 x height)
Maximum Horizontal Shift w/Vertical = 20% of screen width (.2 x width)
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
Example: 56" x 100" Screen
TD = 157" to 195" lens to screen
0.90 X 56" = 50.4" up or down
0.40 X 100" = 40.0" left or right
0.05 X 100" = 5.0" left or right
0.10 X 56" = 5.6" up or down
0.40 X 56" = 22.4" up or down
0.20 X 100" = 20.0" left or right
Lens Option 2: Throw Distance 1.95 - 2.74 x Width of Screen
When only V
ertical or only Horizontal Shift is used:
Maximum Vertical Shift = 104% of screen height (1.04 x height)
Maximum Horizontal Shift = 48% of screen width (.48 x width)
Amount of Horizont
al Shift when Vertical is @ maximum:
Maximum Horizontal Shift = 6% of screen width (.06 x width)
Amount of V
ertical Shift when Horizontal is @ maximum:
Max. Vertical Shift = 12% of screen height (.12 x height)
The maximum shift in 2 directions (ex. maximum left and maximum down):
Maximum Vertical Shift w/ Horizontal = 51% of screen height (.51 x height)
Maximum Horizontal Shift w/Vertical = 29% of screen width (.29 x width)
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
Example: 56" x 100" Screen
TD = 195" to 274" lens to screen
1.04 X 56" = 58.2" up or down
0.48 X 100" = 48.0" left or right
0.06 X 100" = 6.0" left or right
0.12 X 56" = 6.7" up or down
0.51 X 56" = 28.6" up or down
0.29 X 100" = 29.0" left or right
Normal Projection Position
104% or 58.2"
104% or 58.2"
48% or 48" 48% or 48"
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 Shift Range
Normal Projection Position
90% or 50.4"
90% or 50.4"
40% or 40" 40% or 40"