Knoll Systems HDP404 - Manual (Page 8)

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Please note the HD404 projectors are designed for use with 16:9 screens. They
also have a built in scaler for use with 2.35:1 screens. To display images at the
highest definition possible in 2.35:1 or cinemascope (most major movies are
filmed in 2.35:1) an anamorphic lens is required. We recommend the Panamorph
brand, which has fixed, movable and motorized anamorphic lens for use with the
HDP404.
Choosing the aspect ratio
Aspect ratio is the ratio of the image width to
image height. HDTV and most DVDs are 16:9,
which is the default for this projector. When in
4:3 mode the projector places black bars on
both sides of the image. Native mode centers
the image and turns off the internal scaler so
that any resolution larger than the native
projector resolution is cropped on the edges.
Letterbox expands the image to fill the screen.
What you plan to project will also help you
choose between 4:3 and 16:9. For example,
most TV shows are 4:3, while most movies are
16:9. If you have a 16:9 screen, then you should
select an aspect ratio of 16:9 for anamorphic
movies and HDTV, and Native for 4:3 content. If
you have a 4:3 screen you should still use 16:9
for anamorphic movies or HDTV, but you also
have the option of using 4:3, Native, or Natural
Wide for 4:3 content. Keep in mind that
anamorphic movies only appear correctly if the
DVD player is set to output to a 16:9 television.
Natural Wide stretches a 4:3 image to fill the
entire 16:9 screen. The center two-thirds of the
image is unchanged; the edges of the image are
stretched.
Video Connectors
Component RCA
M1-DA/DVI
12 VDC triggers RS-232 IR input
HDMI
Rear Connector Panel
S-video
Composite RCA Component video