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 "Dimensions" on page 55 for the center of lens dimensions of this projector before calculating the appropriate position.

Screen size

H

W

Vertical offset

Screen

Center of lens

Projection distance

The screen aspect ratio is 16:10 and the projected picture is 16:10

 

Screen size

 

 

Vertical

Diagonal

W

H

Distance from screen (mm)

offset

Inch

mm

(mm)

(mm)

 

(mm)

80

2032

1723

1077

842

54

 

 

 

 

 

 

100

2540

2154

1346

1053

67

 

 

 

 

 

 

120

3048

2585

1615

1263

81

 

 

 

 

 

 

150

3810

3231

2019

1579

101

 

 

 

 

 

 

180

4572

3877

2423

1895

121

 

 

 

 

 

 

200

5080

4308

2692

2105

135

 

 

 

 

 

 

220

5588

4739

2962

2316

148

 

 

 

 

 

 

240

6096

5169

3231

2526

162

 

 

 

 

 

 

270

6858

5816

3635

2842

182

 

 

 

 

 

 

300

7620

6462

4039

3158

202

 

 

 

 

 

 

For example, if you are using an 120-inch screen, the recommended projection distance is 1263 mm and the vertical offset is 18 mm.

If your measured projection distance is 2.5 m (2500 mm), the closest match in the "Distance from screen (mm)" column is 2526 mm. Looking across this row shows that a 240'' (about 6.1 m) screen is required.

All measurements are approximate and may vary from the actual sizes.

BenQ recommends that if you intend to permanently install the projector, you should physically test the projection size and distance using the actual projector in situ before you permanently install it, so as to make allowance for this projector's optical characteristics. This will help you determine the exact mounting position so that it best suits your installation location.

14 Positioning your projector

Page 14
Image 14
BenQ MW82IST user manual Obtaining a preferred projected image size, Projection dimensions