Panasonic PT-DW8300U - Manual (Page 32)

Setting up
32
- ENGLISH
Getting Started
J
Calculation formulas for projection distance by lens types
(for PT-DS8500U)
Model number of
projection lens
Throw ratio Aspect ratio Projection distance (L) formula Unit : m
Zoom lens
ET-D75LE1 1.5–2.0 : 1
4 : 3
Min. : L = 0.0307 × SD (") - 0.0760
Max. : L = 0.0410 × SD (") - 0.1004
16 : 9
Min. : L = 0.0334 × SD (") - 0.0760
Max. : L = 0.0446 × SD (") - 0.1004
ET-D75LE2 2.0–3.0 : 1
4 : 3
Min. : L = 0.0412 × SD (") - 0.0795
Max. : L = 0.0617 × SD (") - 0.1064
16 : 9
Min. : L = 0.0448 × SD (") - 0.0795
Max. : L = 0.0672 × SD (") - 0.1064
ET-D75LE3 3.0–5.0 : 1
4 : 3
Min. : L = 0.0617 × SD (") - 0.0958
Max. : L = 0.1031 × SD (") - 0.1216
16 : 9
Min. : L = 0.0672 × SD (") - 0.0958
Max. : L = 0.1123 × SD (") - 0.1216
ET-D75LE4 5.0–8.0 : 1
4 : 3
Min. : L = 0.1031 × SD (") - 0.1158
Max. : L = 0.1639 × SD (") - 0.1013
16 : 9
Min. : L = 0.1123 × SD (") - 0.1158
Max. : L = 0.1786 × SD (") - 0.1013
ET-D75LE8
7.9–15.0 : 1 4 : 3
Min. : L = 0.1640 × SD (") - 0.3862
Max. : L = 0.3072 × SD (") - 0.3598
8.0–15.0 : 1 16 : 9
Min. : L = 0.1786 × SD (") - 0.3862
Max. : L = 0.3346 × SD (") - 0.3598
ET-D75LE6 1.0–1.2 : 1
4 : 3
Min. : L = 0.0207 × SD (") - 0.0566
Max. : L = 0.0248 × SD (") - 0.0736
16 : 9
Min. : L = 0.0225 × SD (") - 0.0566
Max. : L = 0.0270 × SD (") - 0.0736
ET-D75LE10 1.4–1.8 : 1
4 : 3
Min. : L = 0.0290 × SD (") - 0.0857
Max. : L = 0.0375 × SD (") - 0.1085
16 : 9
Min. : L = 0.0316 × SD (") - 0.0857
Max. : L = 0.0409 × SD (") - 0.1085
ET-D75LE20 1.8–2.6 : 1
4 : 3
Min. : L = 0.0371 × SD (") - 0.0832
Max. : L = 0.0540 × SD (") - 0.1162
16 : 9
Min. : L = 0.0404 × SD (") - 0.0832
Max. : L = 0.0588 × SD (") - 0.1162
ET-D75LE30 2.6–5.1 : 1
4 : 3
Min. : L = 0.0536 × SD (") - 0.1131
Max. : L = 0.1039 × SD (") - 0.1765
16 : 9
Min. : L = 0.0583 × SD (") - 0.1131
Max. : L = 0.1132 × SD (") - 0.1765
Fixed-
focus lens
ET-D75LE5 0.8 : 1
4 : 3 L = 0.0158 × SD (") - 0.0835
16 : 9 L = 0.0172 × SD (") - 0.0835