Knoll HDP420, HDP410, HDP460 user manual Anamorphic Lens, Choosing the aspect ratio

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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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Contents HDP410 HDP420 HDP460 Safety Certifications FCC WarningDeclaration of Conformity TrademarksTable of Contents ’ / 1 m Product specifications IntroductionRear Connector Panel Volt DC outputSetting up the Projector Projector PositioningAnamorphic Lens Choosing the aspect ratioVideo Connectors Connecting a video deviceDigital connections Composite RCA video connectionDisplaying an image Computer connectionsShutting down the projector Power Save Sleep TimerTroubleshooting your setup Turning off the projectorPage Page Still need assistance? Using the remote control Troubleshooting the remoteUsing the keypad buttons Optimizing video imagesUsing the menus Customizing the projectorSettingsService menu Picture MenuHorizontal/Vertical Position adjusts the position of a Advanced menuSettings menu Page Select Wait 60 minutes to allow the projector to Cool thoroughly Maintenance Cleaning the lensReplacing the projection lamp Remote control discrete codes Supported video formats RS-232 terminal specificationsCommunication configuration RS232 Command Format Function Command ResponseSupported commands Function Command Range Default= CRT Supported Commands Limited Warranty