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For pt-d7700u), Installation – Panasonic PT-DW7000U User Manual

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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

Installation