Calculation of the projection distance
For a screen size different from the above, use the equation below to calculate the projection distance.
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Distances calculated with the above equations will include a slight error.
minimum
L (m) = (diagonal screen size in inches) × 0.0174 - 0.0471
maximum
L (m) = (diagonal screen size in inches) × 0.0216 - 0.0442
ET-DLE085
minimum
L (m) = (diagonal screen size in inches) × 0.0286 - 0.0540
maximum
L (m) = (diagonal screen size in inches) × 0.0413 - 0.0498
ET-DLE150
minimum
L (m) = (diagonal screen size in inches) × 0.0379 - 0.0746
maximum
L (m) = (diagonal screen size in inches) × 0.0529 - 0.0725
Supplied lens
minimum
L (m) = (diagonal screen size in inches) × 0.0500 - 0.0800
maximum
L (m) = (diagonal screen size in inches) × 0.0789 - 0.0792
ET-DLE250
minimum
L (m) = (diagonal screen size in inches) × 0.0787 - 0.1351
maximum
L (m) = (diagonal screen size in inches) × 0.1190 - 0.1346
ET-DLE350
minimum
L (m) = (diagonal screen size in inches) × 0.1192 - 0.3017
maximum
L (m) = (diagonal screen size in inches) × 0.1885 - 0.2991
ET-DLE450
L1 (m) = (diagonal screen size in inches) × 0.0081 - 0.0047
L3 (m) = L1-0.166
L4 (m) = L1-0.704
ET-DLE030
(fixed focus)
(fixed focus)
L (m) = (diagonal screen size in inches) × 0.0175 - 0.0476
ET-DLE055
Aspect ratio 16:9
Aspect ratio 16:10
minimum
L (m) = (diagonal screen size in inches) × 0.0179 - 0.0471
maximum
L (m) = (diagonal screen size in inches) × 0.0222 - 0.0442
ET-DLE085
minimum
L (m) = (diagonal screen size in inches) × 0.0294 - 0.0540
maximum
L (m) = (diagonal screen size in inches) × 0.0424 - 0.0498
ET-DLE150
minimum
L (m) = (diagonal screen size in inches) × 0.0389 - 0.0746
maximum
L (m) = (diagonal screen size in inches) × 0.0543 - 0.0725
Supplied lens
minimum
L (m) = (diagonal screen size in inches) × 0.0513 - 0.0800
maximum
L (m) = (diagonal screen size in inches) × 0.0811 - 0.0792
ET-DLE250
minimum
L (m) = (diagonal screen size in inches) × 0.0809 - 0.1351
maximum
L (m) = (diagonal screen size in inches) × 0.1223 - 0.1346
ET-DLE350
minimum
L (m) = (diagonal screen size in inches) × 0.1225 - 0.3017
maximum
L (m) = (diagonal screen size in inches) × 0.1937 - 0.2991
ET-DLE450
L1 (m) = (diagonal screen size in inches) × 0.0084 - 0.0047
L3 (m) = L1-0.166
L4 (m) = L1-0.704
ET-DLE030
(fixed focus)
(fixed focus)
L (m) = (diagonal screen size in inches) × 0.0180 - 0.0476
ET-DLE055
Aspect ratio 4:3
minimum
L (m) = (diagonal screen size in inches) × 0.0197 - 0.0471
maximum
L (m) = (diagonal screen size in inches) × 0.0244 - 0.0442
ET-DLE085
minimum
L (m) = (diagonal screen size in inches) × 0.0324 - 0.0540
maximum
L (m) = (diagonal screen size in inches) × 0.0467 - 0.0498
ET-DLE150
minimum
L (m) = (diagonal screen size in inches) × 0.0429 - 0.0746
maximum
L (m) = (diagonal screen size in inches) × 0.0599 - 0.0725
Supplied lens
minimum
L (m) = (diagonal screen size in inches) × 0.0565 - 0.0800
maximum
L (m) = (diagonal screen size in inches) × 0.0893 - 0.0792
ET-DLE250
minimum
L (m) = (diagonal screen size in inches) × 0.0891 - 0.1351
maximum
L (m) = (diagonal screen size in inches) × 0.1347 - 0.1346
ET-DLE350
minimum
L (m) = (diagonal screen size in inches) × 0.1349 - 0.3017
maximum
L (m) = (diagonal screen size in inches) × 0.2133 - 0.2991
ET-DLE450
L1 (m) = (diagonal screen size in inches) × 0.0092 - 0.0047
L3 (m) = L1-0.166
L4 (m) = L1-0.704
ET-DLE030
(fixed focus)
(fixed focus)
L (m) = (diagonal screen size in inches) × 0.0198 - 0.0476
ET-DLE055
PT-
RZ670B
/
RZ670W
/
RZ670LB
/
RZ670LW
DLP
TM
Projector
As of September 2014
1 4 / 1 8
SFD14M021