BenQ user manual SP840 projection dimensions, Length Average

SP840 projection dimensions

Refer to "Dimensions" on page 64 for the center of lens dimensions of this projector before calculating the appropriate position.

Maximum zoom Minimum zoom

Screen

Center of lens

Vertical offset

Projection distance

	16:9 screen			Recommended projection dis-
				tance from screen in mm			Vertical
diagonal		Width	Height	Min		Max	offset in
Inches	mm	mm	mm	length	Average	length	mm
				(with max.		(with min
				zoom)		zoom)
30	762	664	374	1056	1162	1267	112
40	1016	886	498	1408	1549	1690	149
50	1270	1107	623	1760	1936	2112	187
60	1524	1328	747	2112	2323	2534	224
80	2032	1771	996	2816	3098	3379	299
100	2540	2214	1245	3520	3872	4224	374
120	3048	2657	1494	4224	4646	5069	448
150	3810	3321	1868	5280	5808	6336	560
200	5080	4428	2491	7040	7744	8448	747
220	5588	4870	2740	7744	8518	9293	822
250	6350	5535	3113	8800	9680	10560	934
300	7620	6641	3736	10560	-	-	1121

There is 5% tolerance among these numbers due to optical component variations. BenQ recommends that if you intend to permanently install the projector, you should physically test the projection size and distance using the actual projector before you permanently install it, so as to make allowance for this projector's optical characteristics. This will help you determine the exact mounting position so that it best suits your installation location.

English

Positioning your projector 17