R5913197 /02 SP2K-S
58
5.4 Lens shift, zoom & focus
Motorized lens adjustment
The SP2K-S projector is equipped with a motorized lens shift functionality and a motorized zoom & focus
functionality.
About the shift range
The lens can be shifted with respect to the internal optics of the projector (DMD) which results in a shifted
image on the screen (Off-Axis). A 100% shift means that the center point of the projected image is shifted by
half the screen size. In other words, the center point of the projected image falls together with the outline of the
image in an On-Axis projection. Due to mechanical and optical limitations the shift range is limited as well.
All lenses have a shift range of 40% up, 70% down, 15% left, and 15% right. This range is valid for all throw
ratios. Within these shift ranges the projector and lens perform excellently (color/brightness uniformity is ok).
Configuring the projector outside these shift ranges will result in a slight decline of image quality.
It’s mechanical possible to shift outside the recommended field of view, but this will result in a
decline of image quality depending on the used lens and the zoom position of the used lens.
Furthermore, shifting too much in both directions will result in a blurred image corner (and color/
brightness uniformity is out of spec).
U
D
SIDE VIEW
P
F
TOP VIEW
P
F
L
R
+40%
-70%
-15%
+15%
U
D
L
R
P
F
+40%
-70%
-15%
+15%
Image 5–6
P
DMD
F
Field of view
Take into account that when using Scheimpflug to adjust the lens holder, the shift range will become
asymmetrical as a direct consequence. An up/down shift range of 30%/70% could (for example)
become 25%/75% instead after Scheimpflug adjustment.
For this reason it is advised to perform Scheimpflug adjustment
after
you have reached the
sharpest possible image using lens shift, zoom and focus.
How to shift the lens of the SP2K-S projector?
1.
In the
Configuration – Lens Selection
menu, Select the correct lens file and the calibrate the selected lens
with a
Calibrate & return to mid position
action.
2.
Use the
up and down
arrow keys in the
Light, dowser, lens
menu to shift the lens
vertically
and use the
left and right
arrow keys to shift the lens
horizontally
.
Summary of Contents for SP2K-S
Page 1: ...ENABLING BRIGHT OUTCOMES Installation manual SP2K S...
Page 4: ......
Page 8: ...R5913197 02 SP2K S 8...
Page 22: ...R5913197 02 SP2K S 22 Safety...
Page 64: ...R5913197 02 SP2K S 64 Lenses Lens holder...
Page 72: ...R5913197 02 SP2K S 72 ICMP X...
Page 92: ...R5913197 02 SP2K S 92 ICMP X...
Page 100: ...R5913197 02 SP2K S 100 Projector Power Cycle...
Page 106: ...R5913197 02 SP2K S 106 Connectivity...
Page 112: ...R5913197 02 SP2K S 112 1 Image 10 7 Sealed cover fixation Convergence...
Page 120: ...R5913197 02 SP2K S 120 Convergence...
Page 130: ...R5913197 02 SP2K S 130 3 Lift up the cover and remove it reference 2 Projector covers...
Page 144: ...R5913197 02 SP2K S 144 Projector covers...
Page 152: ...R5913197 02 SP2K S 152 List of tools...
Page 156: ...R5913197 02 SP2K S 156 Index...
Page 157: ......