Panasonic PT-DZ8700U, PT-DS8500U manual Throw ratio Aspect ratio Projection distance L formula

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JJCalculation formulas for projection distance by lens types (for PT-DS8500U)

Model number of			Throw ratio	Aspect ratio	Projection distance (L) formula	Unit : m
	projection lens
				4 : 3	Min. : L = 0.0307 × SD (") - 0.0760
					Max. : L = 0.0410 × SD (") - 0.1004
		ET-D75LE1	1.5–2.0 : 1
				16 : 9	Min. : L = 0.0334 × SD (") - 0.0760
					Max. : L = 0.0446 × SD (") - 0.1004
				4 : 3	Min. : L = 0.0412 × SD (") - 0.0795
					Max. : L = 0.0617 × SD (") - 0.1064
		ET-D75LE2	2.0–3.0 : 1
				16 : 9	Min. : L = 0.0448 × SD (") - 0.0795
					Max. : L = 0.0672 × SD (") - 0.1064
				4 : 3	Min. : L = 0.0617 × SD (") - 0.0958
					Max. : L = 0.1031 × SD (") - 0.1216
		ET-D75LE3	3.0–5.0 : 1
				16 : 9	Min. : L = 0.0672 × SD (") - 0.0958
					Max. : L = 0.1123 × SD (") - 0.1216
				4 : 3	Min. : L = 0.1031 × SD (") - 0.1158
					Max. : L = 0.1639 × SD (") - 0.1013
		ET-D75LE4	5.0–8.0 : 1
				16 : 9	Min. : L = 0.1123 × SD (") - 0.1158
					Max. : L = 0.1786 × SD (") - 0.1013
lens			7.9–15.0 : 1	4 : 3	Min. : L = 0.1640 × SD (") - 0.3862
					Max. : L = 0.3072 × SD (") - 0.3598
Zoom		ET-D75LE8
			8.0–15.0 : 1	16 : 9	Max. : L = 0.3346 × SD (") - 0.3598
					Min. : L = 0.1786 × SD (") - 0.3862
				4 : 3	Min. : L = 0.0207 × SD (") - 0.0566
					Max. : L = 0.0248 × SD (") - 0.0736
		ET-D75LE6	1.0–1.2 : 1
				16 : 9	Min. : L = 0.0225 × SD (") - 0.0566
					Max. : L = 0.0270 × SD (") - 0.0736
				4 : 3	Min. : L = 0.0290 × SD (") - 0.0857
					Max. : L = 0.0375 × SD (") - 0.1085
		ET-D75LE10	1.4–1.8 : 1
				16 : 9	Min. : L = 0.0316 × SD (") - 0.0857
					Max. : L = 0.0409 × SD (") - 0.1085
				4 : 3	Min. : L = 0.0371 × SD (") - 0.0832
					Max. : L = 0.0540 × SD (") - 0.1162
		ET-D75LE20	1.8–2.6 : 1
				16 : 9	Min. : L = 0.0404 × SD (") - 0.0832
					Max. : L = 0.0588 × SD (") - 0.1162
				4 : 3	Min. : L = 0.0536 × SD (") - 0.1131
					Max. : L = 0.1039 × SD (") - 0.1765
		ET-D75LE30	2.6–5.1 : 1
				16 : 9	Min. : L = 0.0583 × SD (") - 0.1131
					Max. : L = 0.1132 × SD (") - 0.1765
Fixed- lensfocus		ET-D75LE5	0.8 : 1	4 : 3	L = 0.0158 × SD (") - 0.0835
				16 : 9	L = 0.0172 × SD (") - 0.0835

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