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How to determine the position of the projector for a given screen size
1.
Determine the aspect ratio of your screen, 16:9 or 4:3. If you have a 4:3 screen, refer to the table labeled
"(Standard)". If you have a 16:9 screen, refer to the table labeled "(16:9)".
2.
Select your image size.
3.
Refer to the table and find the closest match to your image size in the left columns labeled
this value, look across this row to the right to find the corresponding average distance from screen value in the
column labeled
"Distance from the screen:
4.
On that same row, look across to the right column and make note of the
vertical offset placement of the projector in relation to the edge of the image.
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.
<Example>
EX321U: If you are using a 4:3 aspect ratio, 100-inch screen, distance from the screen is 3.1 m and with a vertical
offset of 11 cm at Zoom position wide.
If you place the projector in a different position (to that recommended), you will have to tilt it down or up to center the
image on the screen. In these situations, some image distortion will occur. Use the Keystone function to correct the
distortion. See
"Correcting keystone" on page 26
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.
Measure the distance between the projector and where you want to position the screen. This is the projection
distance.
2.
Refer to the table
the Image size column. If the min and max values are available on the table, check that your measured distance
is between the min and max distances listed on either side of the average distance value.
3.
Using this value, look across that row to the left to find the corresponding
image size of the projector at that projection distance.
4.
On that same row, look across to the right column and make note of the
placement of the screen in relation to the horizontal plane of the projector.
<Example>
EX321U: If your measured projection distance was 3.5 m and your screen aspect ratio is 4:3, the closest match in the
"Distance from the screen: L"
required.
L". This is the projection distance.
for details.
"(Standard)"
or "(16:9)", and find the closest match to your measurement in the distance from
column is from 3.1 m to 4.0 m. Looking across this row shows that a 100-inch screen is
"Image
"Hd"
value. This will determine the final
"Image
size". That is the projected
"Hd"
value. This will determine the final
size". Using
EN-13
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