Viewsonic PJD5234L User Manual

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About the aspect ratio
In the pictures below, the black portions are inactive areas and the white portions are active 
areas. OSD menus can be displayed on those unused black areas.
1.
Auto: Scales an image proportionally to fit the 
projector's native resolution in its horizontal 
width. This is suitable for the incoming image 
which is neither in 4:3 nor 16:9 and you want to 
make most use of the screen without altering the 
image's aspect ratio.
2.
4:3: Scales an image so that it is displayed in the 
center of the screen with a 4:3 aspect ratio. This 
is most suitable for 4:3 images like computer 
monitors, standard definition TV and 4:3 aspect 
DVD movies, as it displays them without aspect 
alteration.
3.
16:9: Scales an image so that it is displayed in 
the center of the screen with a 16:9 aspect ratio. 
This is most suitable for images which are 
already in a 16:9 aspect, like high definition TV, 
as it displays them without aspect alteration.
4.
16:10 (PJD5533w only): Scales an image so 
that it is displayed in the center of the screen 
with a 16:10 aspect ratio. This is most suitable 
for images which are already in a 16:10 aspect, 
as it displays them without aspect alteration.
5.
Wide (PJD5533w only): Scales a 4:3 aspect 
image vertically and horizontally in a non-linear 
manner so that it fills the screen with a 16:9 
aspect ratio.
16:10 picture
15:9 picture
4:3 picture
16:9 picture
16:10 picture
4:3 picture