BenQ MX850UST, MW851UST Obtaining a preferred projected image size, Projection dimensions

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.

MX850UST: For example, if you are using an 120-inch screen, the recommended projection distance is 1069 mm and the vertical offset is 457.2 mm.

If your measured projection distance is 0.9 m (900 mm), the closest match in the "Distance from Screen in mm" column is 884 mm. Looking across this row shows that a 100'' (about 2.5 m) screen is required.

MW851UST: For example, if you are using an 120-inch screen, the recommended projection distance is 896 mm and the vertical offset is 355.4 mm.

If your measured projection distance is 0.9 m (900 mm), the closest match in the "Distance from Screen in mm" column is 896 mm. Looking across this row shows that a 120'' (about 3.0 m) screen is required.

Projection dimensions

Refer to "Dimensions" on page 59 for the center of lens dimensions of this projector before calculating the appropriate position.

Screen Size

Vertical offset

Projection distance

Center of lens

Screen

MX850UST

	Screen Size			Distance from Screen in mm	Vertical offset in mm
Diagonal		W	H
Inches	mm	(mm)	(mm)
50	1270	1016	762	421	190.5
60	1524	1219	914	514	228.6
70	1778	1422	1067	606	266.7
80	2032	1626	1219	699	304.8
90	2286	1829	1372	791	342.9
100	2540	2032	1524	884	381.0
120	3048	2438	1829	1069	457.2
150	3810	3048	2286	1347	571.5
200	5080	4064	3048	1810	762.0
220	5588	4470	3353	1995	838.2
240	6096	4877	3658	2180	914.4
260	6604	5283	3962	2365	990.6
280	7112	5690	4267	2551	1066.8
300	7620	6096	4572	2736	1143.0

Positioning your projector 15