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103

5. Using On-Screen Menu

CORNERSTONE

Displaythe4-pointcorrectionscreenandadjustthetrapezoidaldistortionoftheprojectionscreen.

Pleasereferto“CorrectingHorizontalandVerticalKeystoneDistortion[CORNERSTONE]”(→page35)fordetails

ontheoperation.

HORIZONTALCORNER/VERTICALCORNER

Distortioncorrectionforcornerprojectionsuchaswallsurfaces.

HORIZONTAL CORNER

�� Performs correction for projection onto a wall lying at an angle to the horizontal direction�

* Reverse angle correction is also possible�

VERTICAL CORNER

�� Performs correction for projection onto a wall lying at an angle to the vertical direction�

* Reverse angle correction is also possible�

NOTE:

• Whenthemaximumadjustmentrangeisexceeded,distortionadjustmentisdisabled.Setuptheprojectoratanoptimalangleas

thedeteriorationintheimagequalityincreasesasthedistortionadjustmentvolumegetslarger.

• Pleasenotethattheimagewillgooutoffocusduetothedifferenceinthedistancebetweentheupperandlowerorleftandright

sidesandthecenterofthescreenforprojectionscuttingacrosscorners.Lenseswithshortfocalpointsarealsonotrecommended

for projections cutting across corners as the image will go out of focus.

Brand

Model

PA721X

NEC PA721X User Manual

Other manuals for NEC PA721X