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Operation26
Fine-tuning the picture clarity
If needed, sharpen the picture by rotating the focus ring.
If you are still not satisfied with the picture clarity, see "Sharpness" on page 35 to make further
adjustment.
Selecting the aspect ratio
The 'aspect ratio' is the ratio of the picture width to the picture height. Most analog TV and
computers are in 4:3 ratio, and digital TV and DVDs are usually in 16:9 ratio.
With the advent of digital signal processing, digital display devices like this projector can
dynamically stretch and scale the picture output to a different aspect than that of the picture
input source.
You can change the projected picture ratio (no matter what aspect the source is) by entering
the
Pro-Picture > Aspect Ratio menu. Select an aspect ratio to suit the format of
the video signal and your display requirements. There are three aspect ratios available:
In the pictures below, the black portions are inactive areas and the white portions are active
areas.
1. Native: The picture is projected at its original resolution, with no
pixel conversion. For input signals with lower resolutions, the
projected picture will display smaller than if resized to full screen.
You could move the projector towards the screen to increase the
picture size if necessary. You may also need to refocus the projector
after moving the projector.
2. 4:3: Scales a picture so that it is displayed in the center of the screen
with a 4:3 aspect ratio. This is most suitable for 4:3 pictures like
computer monitors, standard definition TV and 4:3 aspect DVD
movies, as it displays them without aspect alteration.
3. 16:9: Scales a picture so that it is displayed in the center of the screen
with a 16:9 aspect ratio. This is most suitable for pictures which are
already in a 16:9 aspect, like high definition TV, as it displays them
without aspect alteration.
16:9 aspect ratio is only sourced through the Component Video input when
being fed an appropriate 16:9 aspect signal. See "Connecting a Component Video source
device" on page 19 and "Obtaining a preferred projected picture size" on page 14 for details.