Chapter 2 Getting
Lens type | Projection Lens | Aspect ratio |
| Projection distance (L) formula | |
Model No. |
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| 16:10 | Min. (LW) |
| L = 2.3952 x SD - 0.1139 |
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| Max. (LT) |
| L = 3.9041 x SD - 0.1128 | |
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Long focus zoom lens | ET‑ELT20 | 16:9 | Min. (LW) |
| L = 2.4617 x SD - 0.1139 |
Max. (LT) |
| L = 4.0126 x SD - 0.1128 | |||
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| 4:3 | Min. (LW) |
| L = 2.7115 x SD - 0.1139 |
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| Max. (LT) |
| L = 4.4197 x SD - 0.1128 | |
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| 16:10 | Min. (LW) |
| L = 3.9138 x SD - 0.2127 |
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| Max. (LT) |
| L = 6.2152 x SD - 0.2107 | |
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Ultra long focus zoom lens | ET‑ELT21 | 16:9 | Min. (LW) |
| L = 4.0226 x SD - 0.2127 |
Max. (LT) |
| L = 6.3880 x SD - 0.2107 | |||
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| 4:3 | Min. (LW) |
| L = 4.4307 x SD - 0.2127 |
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| Max. (LT) |
| L = 7.0361 x SD - 0.2107 | |
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For PT‑EX610 and PT‑EX510
Lens type | Projection Lens | Aspect ratio |
| Projection distance (L) formula | |
Model No. |
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| 4:3 | Min. (LW) |
| L = 1.3346 x SD - 0.0553 |
Standard zoom lens | — | Max. (LT) |
| L = 2.2677 x SD - 0.0480 | |
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16:9 | Min. (LW) |
| L = 1.4541 x SD - 0.0553 | ||
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| Max. (LT) |
| L = 2.4707 x SD - 0.0480 | |
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ET‑ELW21 | 4:3 | — |
| L = 0.6496 x SD - 0.0585 | |
16:9 | — |
| L = 0.7078 x SD - 0.0585 | ||
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| 4:3 | Min. (LW) |
| L = 1.0118 x SD - 0.0558 |
Short focus zoom lens | ET‑ELW20 | Max. (LT) |
| L = 1.3780 x SD - 0.0540 | |
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16:9 | Min. (LW) |
| L = 1.1024 x SD - 0.0558 | ||
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| Max. (LT) |
| L = 1.5013 x SD - 0.0540 | |
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| 4:3 | Min. (LW) |
| L = 2.2693 x SD - 0.1142 |
Long focus zoom lens | ET‑ELT20 | Max. (LT) |
| L = 3.7031 x SD - 0.1129 | |
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16:9 | Min. (LW) |
| L = 2.4724 x SD - 0.1142 | ||
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| Max. (LT) |
| L = 4.0346 x SD - 0.1129 | |
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| 4:3 | Min. (LW) |
| L = 3.7091 x SD - 0.2132 |
Ultra long focus zoom lens | ET‑ELT21 | Max. (LT) |
| L = 5.8937 x SD - 0.2109 | |
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16:9 | Min. (LW) |
| L = 4.0339 x SD - 0.2132 | ||
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| Max. (LT) |
| L = 6.4212 x SD - 0.2109 | |
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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.
Adjustable amount
Front adjustable feet: Approx. 25 mm (31/32")
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 24)
ENGLISH - 37