INTRODUCTION
Thank you for purchasing the Optoma
The
UH480 BASIC PROJECTION PARAMETERS
Throw Distance (distance from projector lens to screen)
This distance should be between 12 and 25 feet (3.6M and 7.6M) with the standard UH480 lens with an ideal range of 14.5 to 17.5 feet (4.4M to 5.3M) for the highest pixel level clarity, especially for computer graphics applications at 1080 resolution. If your projection system involves a significantly higher throw distance then we recommend purchasing an optional correction element (see www.panamorph.com) if you need graphic level performance.
Throw Ratio (ratio of throw distance to 16:9 native image width)
This ratio primarily impacts image distortion. To minimize the amount that the image edges bow inward a throw ratio of at least 1.6 is recommended.
If larger distortion is acceptable, the large aperture of the UH480 will generally work with a throw ratio as low as 1.3 as long as the beam passes through the lens unobstructed. Due to the large distortion and also the increased
Image/Lens Shift
Horizontal lens/image shift other than fine adjustment is not recommended due to keystoning that can be introduced by the UH480. Vertical lens shift does not impact the use of the UH480. However, note that with vertical lens shift the UH480 should be tilted to face the approximate center of the screen to make any residual pincushion distortion symmetric at the top and bottom of the image.
A NOTE ON YOUR SCREEN FORMAT
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Optoma
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