Positioning the projector
To determine where to position the projector, consider the size and shape of your screen, the location of your power outlets, and the distance between the projector and the rest of your equipment. Here are some general guide- lines:
•Position the projector on a flat surface at a right angle to the screen. The projector must be at least 6.4 feet (1.95m) from the projection screen.
•Position the projector within 10 feet (3m) of your power source and within 6 feet (1.8m) of your video device (unless you purchase exten- sion cables). To ensure adequate cable access, do not place the projector within 6 inches (.15m) of a wall or other object.
•If you are installing the projector on the ceiling, refer to the installation guide that comes with the Ceiling Mount Kit for more information. To turn the image upside down, see “Ceiling” on page 38. We recommend using an InFocus authorized ceiling mount.
•Position the projector the desired distance from the screen. The distance from the lens of the projector to the screen, the zoom setting, and the video format determine the size of the projected image. The top illus- tration to the right shows three projected image sizes. For more infor- mation about image sizes at different distances, see “Projected Image Size” on page 44.
•The image exits the projector at a given angle. This image offset is 112.2% when the projector is in 4:3 mode (default mode). This means that if you have an image 10’ high, the bottom of the image will be 1.22’ above the center of the lens.
•The image offset is 132.9% when the projector is in 16:9 mode. This means that if you have an image 10’ high, the bottom of the image will be 3.29’ above the center of the lens.
•See “Connecting a video device” on page 16 for additional information on 16:9 and 4:3 modes.
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| 19 ft. |
4.8 ft. | 7.5 | ft. |
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10 ft high image
Projection angle in 4:3 mode (default)
bottom of image |
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1.22 ft above center | lens center |
of lens |
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10 ft high |
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image |
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Projection angle in 16:9 mode
bottom of image |
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3.29 ft above center | lens center |
of lens |
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