Benq MW712 Manuel D’Utilisation

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Positioning your projector
16
How to determine the position of the projector 
for a given screen size
1.
Select your screen size.
2.
Refer to the table on page 
and find the closest match to your screen size in the 
left columns labelled 
. Using this value, look across this row to the right 
to find the corresponding average distance from screen value in the column labelled 
. This is the projection distance.
3.
On that same row, look across to the right column and make note of the 
 value. This will determine the final vertical offset placement of the 
projector in relation to the edge of the screen.
4.
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 2 
above, and offset by the value determined in step 3 above.
For example, if you are using this projector and a 120-inch screen, the average projection 
distance is 3894 mm and with a vertical offset of 251 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.
Measure the distance between the projector and where you want to position the 
screen. This is the projection distance.
2.
Refer to the table on page 
and find the closest match to your measurement in the 
average distance from screen column labelled 
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 
 listed in that row. 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 
 value. This will determine the final placement of the screen in relation 
to the horizontal plane of the projector. 
For example, if you are using this projector and your measured projection distance is 4.0 m 
(4000 mm), the closest match in the 
 column is 3894 mm. Looking across this 
row shows that a 120-inch screen is required.
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 
 on page for details.