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

MX818ST/MX819ST

(a)

Screen

Center of lens

(c)

(b)

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

 

(a) Screen size

 

(b) Distance from screen

(c) Vertical offset

Diagonal

Height

Width

(mm)

(mm)

Inches

mm

(mm)

(mm)

 

 

80

2032

1219

1626

988

183

100

2540

1524

2032

1235

229

120

3048

1829

2438

1481

274

150

3810

2286

3048

1852

343

180

4572

2743

3658

2222

411

200

5080

3048

4064

2469

457

220

5588

3353

4470

2716

503

240

6096

3658

4877

2963

549

270

6858

4115

5486

3333

617

300

7620

4572

6096

3704

686

 

 

 

 

 

 

For example, if you are using an 120-inch screen, the recommended projection distance is 1481 mm and the vertical offset is 274 mm.

If your measured projection distance is 2.5 m (2500 mm), the closest match in the "(b) Distance from screen" column is 2469 mm. Looking across this row shows that a 200'' (about 5.1 m) screen is required.

Positioning your projector

15

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Image 15
BenQ MX820ST, MX819ST, MX818ST user manual Obtaining a preferred projected image size, Projection dimensions

MX819ST, MX820ST, MX818ST specifications

BenQ has been a prominent player in the projector market, catering to various consumer needs with innovative and high-quality solutions. Among their notable offerings are the BenQ MX818ST, MX820ST, and MX819ST projectors, specifically designed for educational institutions and small to medium-sized business environments. These models are a part of BenQ's commitment to enhancing visual learning and presentations.

The BenQ MX818ST is a short-throw projector, capable of delivering large images from a close distance. This feature proves especially beneficial in classrooms where space may be limited. With a brightness level of up to 3,100 ANSI lumens and a resolution of XGA (1024x768), it provides crisp and clear visuals, making it suitable for various lighting conditions. One of its core technologies is the DLP (Digital Light Processing) technology, which ensures vibrant colors and sharp pictures, elevating the viewing experience during lessons or presentations.

Following closely, the MX820ST builds on the strengths of the MX818ST while adding enhanced features like a higher brightness level of 3300 ANSI lumens. The MX820ST also includes BenQ’s BrightView and high contrast ratio to improve visibility and clarity, ensuring that every detail stands out regardless of ambient light. Equipped with a 1.02-1.23:1 throw ratio, it allows users to project a large screen from mere feet away. Additionally, the projector boasts multiple connectivity options, including HDMI and VGA, facilitating compatibility with various devices.

The MX819ST is another standout in this lineup, offering similar specifications to its siblings but with added features that enhance usability. This model includes improved color performance thanks to BenQ's color calibration technology, ensuring consistency in image presentation. Moreover, it offers a 10,000-hour lamp life, which reduces maintenance costs and improves efficiency by minimizing the frequency of lamp replacements. Its portability and flexible installation options make it a viable choice for both stationary and mobile presentations.

All three models are designed with user-friendly interfaces, ensuring seamless operation whether in a classroom or a boardroom. They also come equipped with advanced network management features, allowing institutions and companies to manage projector settings remotely. With eco-friendly technologies, such as energy-saving modes, these projectors help minimize environmental impact.

In summary, the BenQ MX818ST, MX820ST, and MX819ST projectors stand out in the market due to their combination of advanced technologies, user-friendly features, and robust performance. They cater to the needs of educational and business environments, providing high-quality presentations that make a lasting impact.