Benq MX720 Manuel D’Utilisation

Positioning your projector

14

Obtaining a preferred projected image size

The distance from the projector lens to the screen, the zoom setting, and the video format 

each factors in the projected image size.

Projection dimensions 

Refer to 

 for the center of lens dimensions of this projector 

before calculating the appropriate position.

MX720

The screen aspect ratio is 4:3 and the projected picture is 4:3

For example, if you are using an 120-inch screen, the recommended projection distance is 

4400 mm and the vertical offset is 91 mm.

If your measured projection distance is 6.0 m (6000 mm), the closest match in the 

 column is 5500 mm. Looking across this row shows that a 

150'' (about 3.8 m) screen is required.

40

1016

813

610

1333

1467

1600

30

50

1270

1016

762

1667

1833

2000

38

60

1524

1219

914

2000

2200

2400

46

70

1778

1422

1067

2333

2567

2800

53 

80

2032

1626

1219

2667

2933

3200

61 

90

2286

1829

1372

3000

3300

3600

69

100

2540

2032

1524

3333

3667

4000

76

120

3048

2438

1829

4000

4400

4800

91

150

3810

3048

2286

5000

5500

6000

114 

200

5080

4064

3048

6667

7333

8000

152 

250

6350

5080

3810

8333

9167

10000

191

300

7620

6096

4572

10000

11000

12000

229

Maximum zoom

Minimum zoom

Projection distance

Center of lens

Screen

Vertical offset