InFocus Complete Guide to Projector Setup and Projection Sizes for Models

Table 3: Projection sizes: Short Zoom lens (1.1 -1.51 throw ratio range)

	Minimum Image		Maximum Image
	Diagonal	Image	Diagonal	Image
Distance	Image	Width	Image	Width
(feet/m)	(feet/m)	(feet/m)	(feet/m)	(feet/m)
Min Distance	1.67/0.51	1.33/0.41	2.27/0.69	1.82/0.55
2/0.6
5/1.5	4.17/1.27	3.33/1.02	5.68/1.73	4.55/1.39
10/3.0	8.33/2.54	6.67/2.03	11.36/3.46	9.09/2.77
20/6.1	16.67/5.08	13.33/4.06	22.73/6.93	18.18/5.54
25/7.6	20.83/6.35	16.67/5.08	28.41/8.66	22.73/6.93
Max Distance	25.42/7.75	20.33/6.2	34.66/10.56	27.73/8.45
30.5/9.3

The image offset range for the short throw lens is 10:1 (100%) to 1:1 (50%).

Table 4: Projection sizes: Long Throw lens (2.2 - 4.2:1 throw ratio range)

	Minimum Image		Maximum Image
	Diagonal	Image	Diagonal	Image
Distance	Image	Width	Image	Width
(feet/m)	(feet/m)	(feet/m)	(feet/m)	(feet/m)
Min Distance	1.28/0.39	1.02/.31	2.39/0.73	1.91/0.58
4.2/1.3
10/3.0	3.05/0.93	2.44/0.74	5.68/1.73	4.55/1.39
20/6.1	6.1/1.86	4.88/1.49	11.36/3.46	9.09/2.77
30/9.1	9.15/2.79	7.32/2.23	17.05/5.2	13.64/4.16
40/12.2	12.2/3.72	9.76/2.97	22.73/6.93	18.18/5.54
60/18.3	18.29/5.58	14.63/4.46	34.09/10.39	27.27/8.31
Max Distance	25.37/7.73	20.29/6.19	47.27/14.41	37.82/11.53
60/18.3

The image offset range for the long throw lens is 10:1 (100%) to 1:1 (50%).

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