
ENGLISH - 7
Standard installation dimensions (continued)
■Projection distance according to the projector lens.
Fortheprojectiondistancesforprojectionlenses(optional),refertotheoperatinginstructions[Installation]
providedwiththeprojector.Orcheckthediagonaldimension(m)ofyourprojectedimageandcalculatethe
projectiondistanceusingthefollowingformula.
zInthecaseofPT-DZ870 Unit:m
Lenstype Modelnumberof
projection lens
Aspect
ratio Projectiondistance(L)formula
Standardzoomlens —
16:10 Minimum(LW) L=1.4906xSD(m)
-
0.0746
Maximum(LT) L=2.0814xSD(m)
-
0.0725
16:9 Minimum(LW) L=1.5320xSD(m)
-
0.0746
Maximum(LT) L=2.1393xSD(m)
-
0.0725
4:3 Minimum(LW) L=1.6874xSD(m)
-
0.0746
Maximum(LT) L=2.3563xSD(m)
-
0.0725
Fixed-focuslens ET-DLE055
16:10 —L=0.6893xSD(m)
-
0.0476
16:9 —L=0.7084xSD(m)
-
0.0476
4:3 —L=0.7803xSD(m)
-
0.0476
Ultra short focus zoom lens ET-DLE085
16:10 Minimum(LW) L=0.6865xSD(m)
-
0.0471
Maximum(LT) L=0.8498xSD(m)
-
0.0442
16:9 Minimum(LW) L=0.7056xSD(m)
-
0.0471
Maximum(LT) L=0.8735xSD(m)
-
0.0442
4:3 Minimum(LW) L=0.7772xSD(m)
-
0.0471
Maximum(LT) L=0.9621xSD(m)
-
0.0442
Shortfocuszoomlens ET-DLE150
16:10 Minimum(LW) L=1.1259xSD(m)
-
0.0540
Maximum(LT) L=1.6243xSD(m)
-
0.0498
16:9 Minimum(LW) L=1.1572xSD(m)
-
0.0540
Maximum(LT) L=1.6695xSD(m)
-
0.0498
4:3 Minimum(LW) L=1.2747xSD(m)
-
0.0540
Maximum(LT) L=1.8388xSD(m)
-
0.0498
Intermediate focus zoom lens ET-DLE250
16:10 Minimum(LW) L=1.9665xSD(m)
-
0.0800
Maximum(LT) L=3.1059xSD(m)
-
0.0792
16:9 Minimum(LW) L=2.0212xSD(m)
-
0.0800
Maximum(LT) L=3.1923xSD(m)
-
0.0792
4:3 Minimum(LW) L=2.2263xSD(m)
-
0.0800
Maximum(LT) L=3.5161xSD(m)
-
0.0792
Longfocuszoomlens ET-DLE350
16:10 Minimum(LW) L=3.1000xSD(m)
-
0.1351
Maximum(LT) L=4.6843xSD(m)
-
0.1346
16:9 Minimum(LW) L=3.1862xSD(m)
-
0.1351
Maximum(LT) L=4.8146xSD(m)
-
0.1346
4:3 Minimum(LW) L=3.5094xSD(m)
-
0.1351
Maximum(LT) L=5.3030xSD(m)
-
0.1346
Ultra long focus zoom lens ET-DLE450
16:10 Minimum(LW) L=4.6931xSD(m)
-
0.3017
Maximum(LT) L=7.4193xSD(m)
-
0.2991
16:9 Minimum(LW) L=4.8236xSD(m)
-
0.3017
Maximum(LT) L=7.6256xSD(m)
-
0.2991
4:3 Minimum(LW) L=5.3129xSD(m)
-
0.3017
Maximum(LT) L=8.3992xSD(m)
-
0.2991
Note
zThe values obtained from the above formulas may contain slight errors.
zThethrowratioisbasedonthevalueduringprojectionofa3.81m(150")sizeimage.
zWhenGEOMETRYorKEYSTONEadjustmentisused,compensationismadesothattheprojectedimagesize
becomessmallerthanthespeciedsize.