Panasonic PT-TMZ400 Operating Instructions Manual page 37

Projection distance formulas
To use a projected image size not listed in this manual, check the projected image size SD (m) and use the
respective formula to calculate the value.
The unit of all the formulae is m. (Values obtained by the following calculation formulae contain a slight error.)
When calculating the value using image size designation (value in inches), multiply the value in inches by 0.0254
and substitute it into SD in the formula.
For PT-TMZ400, PT-TMW380
Aspect ratio
Screen height (SH)
Screen width (SW)
When not using Digital
Zoom Extender
Projection distance
(L)
*1
When using Digital
Zoom Extender
*1 X in the formulas represents the setting value of [DIGITAL ZOOM EXTENDER] (100%=1.00, 99%=0.99, ...).
For PT-TMX380
Aspect ratio
Screen height (SH)
Screen width (SW)
When not using Digital
Zoom Extender
Projection distance
(L)
*1
When using Digital
Zoom Extender
*1 X in the formulas represents the setting value of [DIGITAL ZOOM EXTENDER] (100%=1.00, 99%=0.99, ...).
Chapter 2 Getting Started - Setting up
16:10
= 0.530 × SD
= 0.848 × SD
= 0.3774 × SD - 0.0332
= 0.3774 × SD / X - 0.0332 = 0.3879 × SD / X - 0.0342 = 0.4273 × SD / X - 0.0376
4:3
= 0.6 × SD
= 0.8 × SD
= 0.3846 × SD - 0.0339
= 0.3846 × SD / X - 0.0339 = 0.4190 × SD / X - 0.0369 = 0.4076 × SD / X - 0.0359
16:9
= 0.490 × SD
= 0.872 × SD
= 0.3879 × SD - 0.0342
16:9
= 0.490 × SD
= 0.872 × SD
= 0.4190 × SD - 0.0369
4:3
= 0.6 × SD
= 0.8 × SD
= 0.4273 × SD - 0.0376
16:10
= 0.530 × SD
= 0.848 × SD
= 0.4076 × SD - 0.0359
ENGLISH - 37