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Advanced Operation
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Setting-up dimensions which are not given in the table can be calculated
using the formulas below.
If the screen size (diagonal) is SD (m), then the following formula is used to
calculate the projection distance for the wide lens position (LW) and the
projection distance for the telephoto lens position (LT).
Model No. of projection lens Aspect ratio
Methods of calculation of Projection distance (L) Unit: mm
Zoom lens
ET-LE10
(1.3-1.7:1)
4:3 LW=0.027xSD/0.0254-0.0523
LT=0.0355xSD/0.0254-0.0509
16:9 LW 0.0294 SD 0.254-0.0523
LT 0.0387xSD/0.0254-0.0509
ET-LE20
(2.6-4.2:1)
4:3 LW=0.0554xSD/0.0254-0.134
LT=0.0871xSD/0.0254-0.136
16:9 LW 0.0604 SD/0.0254 0.134
LT 0.0949 SD/0.0254 0.136
ET-LE30
(4.0-5.6:1)
4:3 LW=0.0809xSD/0.0254+0.104
LT=0.1147xSD/0.0254+0.096
16:9 LW 0.0881 SD/0.0254 0.104
LT 0.1250 SD/0.0254 0.096
Putting the power cord and remote control unit away