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Capitolo 2Introduzione — Impostazioni
ITALIANO - 43
Formula per calcolare la distanza di proiezione per l’obiettivo di proiezione
Per utilizzare dimensioni di schermo non elencate in questo manuale, controllare le dimensioni dello schermo SD (m) e utilizzare la formula
rispettiva per calcolare la distanza di proiezione.
L’unità di tutte le formule è m (i valori ottenuti dalle seguenti formule di calcolo contengono un leggero errore).
Per PT-DZ870E
Tipo di obiettivo
N. modello obiettivo
di proiezione
Rapporto
aspetto
Formula della distanza di proiezione (L)
Obiettivo zoom standard
16:10
Min. (LW) L = 1,4906 x SD
-
0,0746
Max. (LT) L = 2,0814 x SD
-
0,0725
16:9
Min. (LW) L = 1,5320 x SD
-
0,0746
Max. (LT) L = 2,1393 x SD
-
0,0725
4:3
Min. (LW) L = 1,6874 x SD
-
0,0746
Max. (LT) L = 2,3563 x SD
-
0,0725
Obiettivo a fuoco sso ET-DLE055
16:10 L = 0,6893 x SD
-
0,0476
16:9 L = 0,7084 x SD
-
0,0476
4:3 L = 0,7803 x SD
-
0,0476
Obiettivo zoom a fuoco ultra
corto
ET-DLE085
16:10
Min. (LW) L = 0,6865 x SD
-
0,0471
Max. (LT) L = 0,8498 x SD
-
0,0442
16:9
Min. (LW) L = 0,7056 x SD
-
0,0471
Max. (LT) L = 0,8735 x SD
-
0,0442
4:3
Min. (LW) L = 0,7772 x SD
-
0,0471
Max. (LT) L = 0,9621 x SD
-
0,0442
Obiettivo zoom a fuoco corto ET-DLE150
16:10
Min. (LW) L = 1,1259 x SD
-
0,0540
Max. (LT) L = 1,6243 x SD
-
0,0498
16:9
Min. (LW) L = 1,1572 x SD
-
0,0540
Max. (LT) L = 1,6695 x SD
-
0,0498
4:3
Min. (LW) L = 1,2747 x SD
-
0,0540
Max. (LT) L = 1,8388 x SD
-
0,0498
Obiettivo zoom a fuoco
intermedio
ET-DLE250
16:10
Min. (LW) L = 1,9665 x SD
-
0,0800
Max. (LT) L = 3,1059 x SD
-
0,0792
16:9
Min. (LW) L = 2,0212 x SD
-
0,0800
Max. (LT) L = 3,1923 x SD
-
0,0792
4:3
Min. (LW) L = 2,2263 x SD
-
0,0800
Max. (LT) L = 3,5161 x SD
-
0,0792
Obiettivo zoom a fuoco lungo ET-DLE350
16:10
Min. (LW) L = 3,1000 x SD
-
0,1351
Max. (LT) L = 4,6843 x SD
-
0,1346
16:9
Min. (LW) L = 3,1862 x SD
-
0,1351
Max. (LT) L = 4,8146 x SD
-
0,1346
4:3
Min. (LW) L = 3,5094 x SD
-
0,1351
Max. (LT) L = 5,3030 x SD
-
0,1346
Ultra obiettivo zoom a fuoco
ultra lungo
ET-DLE450
16:10
Min. (LW) L = 4,6931 x SD
-
0,3017
Max. (LT) L = 7,4193 x SD
-
0,2991
16:9
Min. (LW) L = 4,8236 x SD
-
0,3017
Max. (LT) L = 7,6256 x SD
-
0,2991
4:3
Min. (LW) L = 5,3129 x SD
-
0,3017
Max. (LT) L = 8,3992 x SD
-
0,2991
43


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