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Calculation formulas for projection distance by lens types (for PT-D7600U)
16:9
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-D7500U)
Minimal distance: L=0.1491 x Screen diagonal (inch) – 0.1145
Maximal distance: L=0.2418 x Screen diagonal (inch) – 0.1022
16:9
ET-D75LE5
(1.0 :1)
Model number of projection lens
Aspect ratio
Projection distance (L) formula Units: m
L= 0.0212 x Screen diagonal (inch) – 0.0836
L= 0.0231 x Screen diagonal (inch) – 0.0836
ET-D75LE1
ET-D75LE1SC
(1.87–2.5 :1)
Minimal distance: L=0.0412 x Screen diagonal (inch) – 0.0760
Maximal distance: L=0.0549 x Screen diagonal (inch) – 0.1003
4:3
16:9
Minimal distance: L=0.0443 x Screen diagonal (inch) – 0.0759
Maximal distance: L=0.0598 x Screen diagonal (inch) – 0.1002
ET-D75LE2
ET-D75LE2SC
(2.5–3.75 :1)
4:3
Minimal distance: L=0.0552 x Screen diagonal (inch) – 0.0795
Maximal distance: L=0.0826 x Screen diagonal (inch) – 0.1061
16:9
Minimal distance: L=0.0833 x Screen diagonal (inch) – 0.0963
Maximal distance: L=0.137 x Screen diagonal (inch) – 0.1203
Minimal distance: L=0.0601 x Screen diagonal (inch) – 0.0794
Maximal distance: L=0.0899 x Screen diagonal (inch) – 0.1060
4:3
ET-D75LE3
ET-D75LE3SC
(3.75–6.25 :1)
16:9
Minimal distance: L=0.090 x Screen diagonal (inch) – 0.0963
Maximal distance: L=0.0149 x Screen diagonal (inch) – 0.1023
Minimal distance: L=0.137 x Screen diagonal (inch) – 0.1146
Maximal distance: L=0.2222 x Screen diagonal (inch) – 0.1023
4:3
ET-D75LE4
ET-D75LE4SC
(6.25–10.0 :1)
16:9
4:3
5:4
16:9
5:4
16:9
5:4
16:9
5:4
Zoom
lens
Zoom
lens
Fixed-
focus
lens
Fixed-
focus
lens
Model number of projection lens
Aspect ratio
Projection distance (L) formula Units: m
ET-D75LE5
(0.8 : 1)
ET-D75LE1
ET-D75LE1SC
(1.5–2.0 : 1)
ET-D75LE2
ET-D75LE2SC
(2.0–3.0: 1)
ET-D75LE3
ET-D75LE3SC
(3.0–5.0: 1)
ET-D75LE4
ET-D75LE4SC
(5.0–8.0: 1)
16:9
5:4
Minimal distance: L=0.0321 x Screen diagonal (inch) – 0.0761
Maximal distance: L=0.0427 x Screen diagonal (inch) – 0.1003
Minimal distance: L=0.0352 x Screen diagonal (inch) – 0.0761
Maximal distance: L=0.0469 x Screen diagonal (inch) – 0.1002
Minimal distance: L=0.0429 x Screen diagonal (inch) – 0.0794
Maximal distance: L=0.0645 x Screen diagonal (inch) – 0.1065
Minimal distance: L=0.0472 x Screen diagonal (inch) – 0.0793
Maximal distance: L=0.0709 x Screen diagonal (inch) – 0.1065
Minimal distance: L=0.0645 x Screen diagonal (inch) – 0.0959
Maximal distance: L=0.1075 x Screen diagonal (inch) – 0.1214
Minimal distance: L=0.7095 x Screen diagonal (inch) – 0.0958
Maximal distance: L=0.1075 x Screen diagonal (inch) – 0.1214
Minimal distance: L=0.1177 x Screen diagonal (inch) – 0.1156
Maximal distance: L=0.1724 x Screen diagonal (inch) – 0.102
Minimal distance: L=0.1182 x Screen diagonal (inch) – 0.115
Maximal distance: L=0.1892 x Screen diagonal (inch) – 0.102
L= 0.0162 x Screen diagonal (inch) – 0.0032
L= 0.0212 x Screen diagonal (inch) – 0.0318