Panasonic PT-EX620 Operating Instructions - Page 37

Adjusting adjustable feet

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Lens type Ultra long focus zoom lens Chapter 2 Getting Started - Setting up Projection Lens Model No. ET‑ELT31 Aspect ratio 16:10 16:9 4:3 Projection distance (L) formula Min. (LW) Max. (LT) Min. (LW) Max. (LT) Min. (LW) Max. (LT) L = 3.3622 x SD + 0.1001 L = 6.1287 x SD + 0.0940 L = 3.4557 x SD + 0.1001 L = 6.2991 x SD + 0.0940 L = 3.8063 x SD + 0.1001 L = 6.9382 x SD + 0.0940 For PT‑EX620 and PT‑EX520 Lens type Standard zoom lens Short focus zoom lens Short focus zoom lens Long focus zoom lens Ultra long focus zoom lens Projection Lens Model No. - ET‑ELW31 ET‑ELW30 ET‑ELT30 ET‑ELT31 Aspect ratio 4:3 16:9 4:3 16:9 4:3 16:9 4:3 16:9 4:3 16:9 Projection distance (L) formula Min. (LW) Max. (LT) Min. (LW) Max. (LT) Min. (LW) Max. (LT) Min. (LW) Max. (LT) Min. (LW) Max. (LT) Min. (LW) Max. (LT) Min. (LW) Max. (LT) Min. (LW) Max. (LT) Min. (LW) Max. (LT) Min. (LW) Max. (LT) L = 1.0630 x SD - 0.0332 L = 1.9706 x SD - 0.0334 L = 1.1581 x SD - 0.0332 L = 2.1469 x SD - 0.0334 L = 0.6493 x SD - 0.0330 L = 0.8452 x SD + 0.0350 L = 0.7074 x SD - 0.0330 L = 0.9208 x SD + 0.0350 L = 0.8128 x SD - 0.0333 L = 1.0591 x SD - 0.0347 L = 0.8855 x SD - 0.0333 L = 1.1539 x SD - 0.0347 L = 1.9706 x SD - 0.1130 L = 3.5456 x SD - 0.1114 L = 2.1469 x SD - 0.1130 L = 3.8628 x SD - 0.1114 L = 3.4264 x SD + 0.1005 L = 6.2453 x SD + 0.0941 L = 3.7330 x SD + 0.1005 L = 6.8041 x SD + 0.0941 Adjusting adjustable feet Install the projector on a flat surface so that the front of the projector is parallel to the screen surface and the projected image is rectangular. If the screen is tilted downward, the projected image can be adjusted to be rectangular by adjusting the front adjustable feet. The adjustable feet can also be used to adjust the projector to be level when it is tilted in the horizontal direction. Extend the adjustable feet by rotating in the direction shown in the figure and retract by rotating in the opposite direction. Maximum adjustable range Adjustable feet: 23 mm (29/32") each Attention ff Heated air is expelled from the air exhaust port while the lamp is lit. Do not touch the air exhaust port directly when adjusting the adjustable feet. (x page 26) ENGLISH - 37

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Chapter 2
Getting Started — Setting up
ENGLISH - 37
Lens type
Projection Lens
Model No.
Aspect ratio
Projection distance (L) formula
Ultra long focus zoom lens
ET-ELT31
16:10
Min. (LW)
L = 3.3622 x SD + 0.1001
Max. (LT)
L = 6.1287 x SD + 0.0940
16:9
Min. (LW)
L = 3.4557 x SD + 0.1001
Max. (LT)
L = 6.2991 x SD + 0.0940
4:3
Min. (LW)
L = 3.8063 x SD + 0.1001
Max. (LT)
L = 6.9382 x SD + 0.0940
For PT-EX620 and PT-EX520
Lens type
Projection Lens
Model No.
Aspect ratio
Projection distance (L) formula
Standard zoom lens
—
4:3
Min. (LW)
L = 1.0630 x SD
-
0.0332
Max. (LT)
L = 1.9706 x SD
-
0.0334
16:9
Min. (LW)
L = 1.1581 x SD
-
0.0332
Max. (LT)
L = 2.1469 x SD
-
0.0334
Short focus zoom lens
ET-ELW31
4:3
Min. (LW)
L = 0.6493 x SD
-
0.0330
Max. (LT)
L = 0.8452 x SD + 0.0350
16:9
Min. (LW)
L = 0.7074 x SD
-
0.0330
Max. (LT)
L = 0.9208 x SD + 0.0350
Short focus zoom lens
ET-ELW30
4:3
Min. (LW)
L = 0.8128 x SD
-
0.0333
Max. (LT)
L = 1.0591 x SD
-
0.0347
16:9
Min. (LW)
L = 0.8855 x SD
-
0.0333
Max. (LT)
L = 1.1539 x SD
-
0.0347
Long focus zoom lens
ET-ELT30
4:3
Min. (LW)
L = 1.9706 x SD
-
0.1130
Max. (LT)
L = 3.5456 x SD
-
0.1114
16:9
Min. (LW)
L = 2.1469 x SD
-
0.1130
Max. (LT)
L = 3.8628 x SD
-
0.1114
Ultra long focus zoom lens
ET-ELT31
4:3
Min. (LW)
L = 3.4264 x SD + 0.1005
Max. (LT)
L = 6.2453 x SD + 0.0941
16:9
Min. (LW)
L = 3.7330 x SD + 0.1005
Max. (LT)
L = 6.8041 x SD + 0.0941
Adjusting adjustable feet
Install the projector on a flat surface so that the front of the projector is parallel to the screen surface and the
projected image is rectangular.
If the screen is tilted downward, the projected image can be adjusted to be rectangular by adjusting the front
adjustable feet. The adjustable feet can also be used to adjust the projector to be level when it is tilted in the
horizontal direction.
Extend the adjustable feet by rotating in the direction shown in the figure and retract by rotating in the opposite
direction.
Maximum adjustable range
Adjustable feet: 23 mm (29/32") each
Attention
f
Heated air is expelled from the air exhaust port while the lamp is lit. Do not touch the air exhaust port directly when adjusting the adjustable
feet. (
x
page 26)