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 screen size.
3.Refer to the table and find the closest match to your screen size in the left columns labeled "Screen". Using 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: L". This is the projection distance.
4.On that same row, look across to the right column and make note of the "Hd" value. This will determine the final vertical offset placement of the projector in relation to the edge of the screen.
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.
EX240U: For example, if you are using a 4:3 aspect ratio,
EW270U: For example, if you are using a 4:3 aspect ratio,
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 for details.
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 "(Standard)" or "(16:9)", and find the closest match to your measurement in the distance from the screen 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 "Screen". That is the projected 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 "Hd" value. This will determine the final placement of the screen in relation to the horizontal plane of the projector.
EX240U: For example, if your measured projection distance was 4.0 m and your screen aspect ratio is 4:3, the closest
match in the "Distance from the screen: L" column is from 3.8 m to 4.2 m. Looking across this row shows that a 100- inch screen is required.
EW270U: For example, if your measured projection distance was 5.0 m and your screen aspect ratio is 4:3, the closest
match in the "Distance from the screen: L" column is from 4.8 m to 5.3 m. Looking across this row shows that a 150- inch screen is required.
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