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 19 and find the closest match to your screen size in the left columns labelled "Screen size". Using this value, look across this row to the right to find the corresponding distance from screen value in the column labelled "Distance from screen (mm)". This is the projection distance.

3.On that same row, look across to the right column and make note of the "Vertical offset (mm)" 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 the MP780 ST+ and a 120-inch screen, the projection distance is 1293 mm and with a vertical offset of 264 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 19 and find the closest match to your measurement in the column labelled "Distance from screen (mm)".

3.Using this value, look across that row to the left to find the corresponding "Screen size" 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 "Vertical offset (mm)" value. This will determine the final placement of the screen in relation to the horizontal plane of the projector.

For example, if you are using the MP780 ST+ and your measured projection distance is 2.0 m (2000 mm), the closest match in the column is 1616 mm. Looking across this row shows that a 150-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 "Correcting keystone" on page 33 on page for details.

18 Positioning your projector

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BenQ MP780 ST+, MW860USTi user manual
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MW860USTi, MP780 ST+ specifications

The BenQ MP780 ST+ and MW860USTi are cutting-edge projectors that cater to diverse audience needs, boasting a unique blend of features, technologies, and characteristics that enhance the viewing experience in both educational and corporate environments.

The BenQ MP780 ST+ is a short-throw projector designed to be positioned close to the screen, making it perfect for smaller spaces. It delivers a bright projection of up to 3,000 lumens, ensuring vivid and clear imagery even in well-lit rooms. The MP780 ST+ features a 1280 x 800 WXGA resolution, allowing it to display intricate details accurately. This model supports a 100-inch image from just a few feet away, eliminating the shadows that often accompany standard projectors.

One standout feature of the MP780 ST+ is its Smart Eco Technology, which adjusts the projector's brightness based on the ambient light, optimizing lamp life while maintaining image quality. Additionally, the projector is equipped with an interactive pen, transforming traditional presentations into engaging, hands-on learning experiences. This interactivity is further enhanced by the projector's support for multi-screen collaboration, enabling multiple users to contribute and share their materials seamlessly.

On the other hand, the BenQ MW860USTi takes short-throw projection to the next level, offering a higher resolution of 1280 x 800 WXGA. With 3,500 lumens brightness, this projector is ideal for larger classrooms or meeting rooms with various lighting conditions. It can create a 100-inch image from as little as 0.65 meters away, making it incredibly flexible for tight spaces.

The MW860USTi also incorporates advanced features like the Auto Vertical Keystone Correction, which helps in achieving a perfectly rectangular image even when the projector is slightly misaligned. This projector supports a range of connectivity options including HDMI, USB, and VGA, ensuring compatibility with various devices. Plus, its built-in speakers offer robust audio output, reducing the need for additional sound equipment during presentations.

Both models come equipped with BenQ's DLP technology, known for its reliability and sharpness. They also feature long-lasting lamp life, ensuring reduced maintenance costs. These projectors are energy-efficient, which aligns with modern sustainability goals, making them a responsible choice for institutions and companies alike.

In summary, the BenQ MP780 ST+ and MW860USTi projectors provide superb performance with their strong brightness, short-throw capabilities, and interactive features. They are designed to enhance engagement in collaborative settings, making them invaluable tools in both educational and corporate landscapes.
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