BenQ LW61ST, LX60ST user manual 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.

Projection dimensions

Refer to "Dimensions" on page 54 for the center of lens dimensions of this projector before calculating the appropriate position.

LX60ST

Screen size

Vertical offset

Screen Center of lens

Projection distance

	Screen size				Vertical offset
Diagonal		W	H	Distance from screen (mm)
					(mm)
Inch	mm	(mm)	(mm)
80	2032	1626	1219	988	183
100	2540	2032	1524	1235	229
120	3048	2438	1829	1481	274
150	3810	3048	2286	1852	343
180	4572	3658	2743	2222	411
200	5080	4064	3048	2469	457
220	5588	4470	3353	2716	503
240	6096	4877	3658	2963	549
270	6858	5486	4115	3333	617
300	7620	6096	4572	3704	686

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

If your measured projection distance is 2.0 m (2000 mm), the closest match in the "Distance from screen (mm)" column is 1852 mm. Looking across this row shows that a 150'' (about 3.8 m) screen is required.

Positioning your projector 15