Benq SH910 Benutzerhandbuch

Positioning your projector

17

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 a 120-inch screen, the average projection distance is 4710 mm 
and with a vertical offset of 513 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 your measured projection distance was 4.0 m (4000 mm), the closest match 
in the 

 column is 3920 mm. Looking across this row shows that a 100-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 

 for details.