1. Before Setting Up Your Projector
21
1.4
Selecting Primary/Wide Converter Lenses for
Your Projector
This section provides the guideline information on
how to select a screen size, projector mounting
position, and type of lenses, which is appropriate for
your presentation purposes. Select primary/wide
converter lenses for your projector according to the
environment in which it is installed.
If you are using the anamorphic lens, please read
wide converter lens as anamorphic lens.
Note that all descriptions given in this manual assume
that the angle of projection is zero degree. In case of
projection from an upper position or from the right or
left, it is necessary to calculate the width for the
minimum projected image that is a little larger than
the screen size.
1.4.1
Screen Type
The following two types of screen masks can be used for the DLP Cinema Projector. Check the
screen mask for your projector for its type before selecting lenses, because types of primary/
wide converter lenses to be used on the projector and its settings depend upon the type of screen
mask you use.
Horizontal moving screen mask
Screen masks move horizontally to adjust
the screen.
Vertical moving screen mask
Screen masks move vertically to adjust the
screen.
Screen
Width of minimum
Projected
image
