8
HDP410, HDP420 and HDP460 Projection Throw Distance 16:9 Video Screen:
Screen Diagonal
92"
103"
106"
110"
122.5"
146.75"
Minimum Distance
149"
166"
171"
178"
198"
237"
Maximum Distance
178"
199"
205"
212"
237"
284"
Screen offset
16"
18"
19"
20"
23"
26"
Viewing Area
45"x80" 50.5"x89.75" 52"x92" 54"x96" 60"x107" 72"x128"
MAXIMUM DISTANCE TO SCREEN (16:9) = 1.935 x SCREEN DIAGONAL SIZE
MINIMUM DISTANCE TO SCREEN (16:9) = 1.612 x SCREEN DIAGONAL SIZE
SCREEN OFFSET (IMAGE DROP OR RISE) (16:9) = 0.177 x SCREEN DIAGONAL SIZE
An interactive screen calculator (in Microsoft Excel format) is available at:
www.knollsystems.com/prod-hdp420-throw.html
Anamorphic Lens
Please note the HD410, HDP420 and HDP460 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 HDP410, HDP420 and HDP460.
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.
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