Panasonic PT-D7700U-K Dlp Projector - English/ French - Page 22

Calculation formulas for projection distance by lens types for PT-D7700U - manual

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Installation If the projector is used with a screen size not listed in this manual, check the diagonal dimension (inch) of your screen and calculate the projection distance using the following formulas. Calculation formulas for projection distance by lens types (for PT-D7700U) Model number of projection lens Aspect ratio Projection distance (L) formula Units: m ET-D75LE1 (1.5-2.0 :1) 4:3 Minimal distance: L=0.0307 x Screen diagonal (inch) - 0.0760 Maximal distance: L=0.0410 x Screen diagonal (inch) - 0.1004 16:9 Minimal distance: L=0.0334 x Screen diagonal (inch) - 0.0760 Maximal distance: L=0.0446 x Screen diagonal (inch) - 0.1004 ET-D75LE2 (2.0-3.0 :1) 4:3 Minimal distance: L=0.0412 x Screen diagonal (inch) - 0.0795 Maximal distance: L=0.0617 x Screen diagonal (inch) - 0.1064 16:9 Minimal distance: L=0.0448 x Screen diagonal (inch) - 0.0795 Maximal distance: L=0.0672 x Screen diagonal (inch) - 0.1064 Zoom lens ET-D75LE3 (3.0-5.0 :1) 4:3 Minimal distance: L=0.0617 x Screen diagonal (inch) - 0.0958 Maximal distance: L=0.1031 x Screen diagonal (inch) - 0.1216 16:9 Minimal distance: L=0.0672 x Screen diagonal (inch) - 0.0958 Maximal distance: L=0.1123 x Screen diagonal (inch) - 0.1216 ET-D75LE4 (5.0-8.0 :1) 4:3 Minimal distance: L=0.1031 x Screen diagonal (inch) - 0.1158 Maximal distance: L=0.1639 x Screen diagonal (inch) - 0.1013 16:9 Minimal distance: L=0.1123 x Screen diagonal (inch) - 0.1158 Maximal distance: L=0.1786 x Screen diagonal (inch) - 0.1013 ET-D75LE8 (8.0-15.0 :1) 4:3 Minimal distance: L=0.1640 x Screen diagonal (inch) - 0.3862 Maximal distance: L=0.3072 x Screen diagonal (inch) - 0.3598 16:9 Minimal distance: L=0.1786 x Screen diagonal (inch) - 0.3862 Maximal distance: L=0.3346 x Screen diagonal (inch) - 0.3598 Fixedfocus lens ET-D75LE5 (0.8:1) 4:3 L= 0.0158 x Screen diagonal (inch) - 0.0835 16:9 L= 0.0172 x Screen diagonal (inch) - 0.0835 22

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22
Installation
If the projector is used with a screen size not listed in this manual, check the diagonal dimension (inch) of your
screen and calculate the projection distance using the following formulas.
Calculation formulas for projection distance by lens types (for PT-D7700U)
Minimal distance:
L=0.1123 x Screen diagonal (inch)
–
0.1158
Maximal distance: L=0.1786 x Screen diagonal (inch)
–
0.1013
16:9
ET-D75LE5
(0.8:1)
Model number of projection lens
Aspect ratio
Projection distance (L) formula
Units: m
L= 0.0158 x Screen diagonal (inch)
–
0.0835
L= 0.0172 x Screen diagonal (inch)
–
0.0835
ET-D75LE1
(1.5
–
2.0 :1)
Minimal distance:
L=0.0307 x Screen diagonal (inch)
–
0.0760
Maximal distance: L=0.0410 x Screen diagonal (inch)
–
0.1004
4:3
16:9
Minimal distance:
L=0.0334 x Screen diagonal (inch)
–
0.0760
Maximal distance: L=0.0446 x Screen diagonal (inch)
–
0.1004
ET-D75LE2
(2.0
–
3.0 :1)
4:3
Minimal distance:
L=0.0412 x Screen diagonal (inch)
–
0.0795
Maximal distance: L=0.0617 x Screen diagonal (inch)
–
0.1064
16:9
Minimal distance:
L=0.0617 x Screen diagonal (inch)
–
0.0958
Maximal distance: L=0.1031 x Screen diagonal (inch)
–
0.1216
Minimal distance:
L=0.0448 x Screen diagonal (inch)
–
0.0795
Maximal distance: L=0.0672 x Screen diagonal (inch)
–
0.1064
4:3
ET-D75LE3
(3.0
–
5.0 :1)
16:9
Minimal distance:
L=0.0672 x Screen diagonal (inch)
–
0.0958
Maximal distance: L=0.1123 x Screen diagonal (inch)
–
0.1216
Minimal distance:
L=0.1031 x Screen diagonal (inch)
–
0.1158
Maximal distance: L=0.1639 x Screen diagonal (inch)
–
0.1013
4:3
ET-D75LE4
(5.0
–
8.0 :1)
16:9
Minimal distance:
L=0.1786 x Screen diagonal (inch)
–
0.3862
Maximal distance: L=0.3346 x Screen diagonal (inch)
–
0.3598
Minimal distance:
L=0.1640 x Screen diagonal (inch)
–
0.3862
Maximal distance: L=0.3072 x Screen diagonal (inch)
–
0.3598
4:3
ET-D75LE8
(8.0
–
15.0 :1)
16:9
4:3
Zoom
lens
Fixed-
focus
lens