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Positioning your projector 19
5. The recommended position for the projector is aligned perpendicular to the
horizontal center of the screen, at the distance from the screen determined in step 3
above, and offset by the value determined in step 4 above.
For example, if you are using an 120-inch, 4:3-aspect-ratio screen and the projected picture
is 15:9, please refer to Table B2
. The average projection distance is 4133.7 mm and with a
vertical offset of 146 mm.
How to determine the recommended screen size for a
given distance
This method can be used for situations where you have purchased this projector and would
like to know what screen size will fit in your room.
The maximum screen size is limited by the physical space available in your room.
1. Determine the aspect ratio of the screen you need, 16:9 or 4:3? If you need a 16:9
screen, refer to Table A
. If you need a 4:3 screen, refer to Table B1 or Table B2
depending on the projected picture aspect ratio you’ve got.
2. Measure the distance between the projector and where you want to position the
screen. This is the projection distance.
3. Refer to that table and find the closest match to your measurement in the average
distance from screen column labelled "Average". Check that your measured distance is
between the min and max distances listed on either side of the average distance value.
4. Using this value, look across that row to the left to find the corresponding "Screen
Dimensions" listed in that row. That is the recommended screen size you can purchase
at that projection distance.
5. On that same row, look across to the right column and make note of the "Vertical
Offset" value. This will determine the final placement of the screen in relation to the
horizontal plane of the projector.
For example, if you need a 16:9 screen to project a 16:9 picture and your measured
projection distance was 4.8 m (4800 mm), please refer to Table A
. The closest match in the
"Average" column is
4508 mm. Looking across this row shows that a 120'' (3.0 m) screen is
required.