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 57 for the center of lens dimensions of this projector before calculating the appropriate position.

MX720

 

Maximum zoom

Minimum zoom

 

Screen

 

Center of lens

 

Vertical offset

 

Projection distance

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

Screen size

Size of the

Distance from screen (mm)

 

projected image

Vertical

 

 

 

 

 

Diagonal

W

H

Min length

 

Max length

offset

 

 

(max.

Average

 

(mm)

Inch

mm

(mm)

(mm)

(min. zoom)

zoom)

 

 

 

 

 

 

 

 

 

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

 

 

 

 

 

 

 

 

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 "Distance from screen (mm)" column is 5500 mm. Looking across this row shows that a 150'' (about 3.8 m) screen is required.

14 Positioning your projector

Page 14
Image 14
BenQ MX720 user manual Obtaining a preferred projected image size

MX720 specifications

The BenQ MX720 and MW721 are two versatile projectors designed to meet the demands of educational and corporate environments, providing high performance and remarkable features that enhance presentations and classroom interactions.

Starting with the BenQ MX720, this projector boasts a maximum brightness of 4000 ANSI lumens, ensuring that images remain clear and vibrant even in well-lit rooms. Its native XGA (1024x768) resolution is complemented by a high contrast ratio of 13,000:1, which produces crisp images and detailed visuals. The MX720 employs DLP technology, known for its reliability and color accuracy, making it an ideal choice for presentations that require excellent image quality.

The MX720 also features a range of connectivity options, including HDMI, VGA, and USB ports, enabling users to easily connect various devices such as laptops, document cameras, and media players. With a 1.1x optical zoom lens, the projector allows flexible installation and easy adjustments to image size, ensuring that users can achieve the perfect projection for any setting.

On the other hand, the BenQ MW721 offers a higher resolution of WXGA (1280x800), making it suitable for displaying widescreen content. This projector also provides an impressive brightness level of 4000 ANSI lumens and a similar high contrast ratio of 13,000:1, ensuring excellent image quality across different lighting conditions. The DLP technology used in the MW721 contributes to sharp visuals and vibrant colors, making it a great option for movies, presentations, and detailed graphics.

Both projectors incorporate features like SmartEco technology, which adjusts lamp power dynamically to extend the lamp life while reducing energy consumption. This smart management prolongs the lifespan of the lamp to up to 10,000 hours, resulting in cost savings over time.

In addition, both models come equipped with 3D support, providing an immersive experience that can be leveraged for educational purposes or engaging presentations. The intuitive user interface of the projectors also simplifies setup and operation, allowing educators and professionals to focus more on their content and less on technology.

In summary, the BenQ MX720 and MW721 are powerful projectors that deliver exceptional image quality, versatility in connectivity, and advanced technologies. They cater to a wide range of environments, making them ideal tools for both education and professional presentations. Their combination of performance, reliability, and user-friendly features ensures that they meet the needs of modern users effectively.