Panasonic PT-DW100U Operating Instructions Manual page 21

Projection distances by the type of projection lenses
(optional)
The available lenses have been designed with different projector-distance to screen-width ratios ("throw ratios").
Select the appropriate lens model for your projection distance and screen size. Consult the following tables and
Panasonics's online Lens Calculator.
Side View
Screen
SH
Top View
Screen
SW
Note
The projection distances listed here involve an error of ±5 %.
•
• Keystone distortions are corrected in the way the screen size becomes smaller than the original one.
L
L : Projection distance
SH : Effective screen height
SW : Effective screen width
ENGLISH – 21