Clarity SN-4035-WX Bobcat, User Manual, Page: 54 / 120

3.3 Manual Selection and Adjustments
44
3.3.6 Aspect Ratio
The aspect ratio of any picture is its height divided by its width. H ÷ W = Aspect Ratio
The native aspect ratio of the Bay Cat screen is 1.77,
which is sometimes referred to as 16:9. This is the
HD1920 picture format.
1920 × 1080 pixels
1920 ÷ 1080 = 1.77
Many pictures do not have this aspect ratio. Stan-
dard television is 1.33 and HDTV is 1.77. Movies
from DVDs vary depending on the original film for-
mat, often 1.85. The larger the number, the “wider”
the picture seems.
When the incoming picture is a different aspect
ratio from the screen, Bay Cat gives you four choices
to make it fit. (These are “radio” buttons; you can
only choose one.)
Fill Both Ways
makes the picture fit top-to-bottom
and left-to-right regardless of how this stretches or
compresses the picture.
Fill Both Ways distorts the picture, when the aspect
ratio of the incoming picture is not the same as the Bay
Cat screen, 1.66. The other three choices (below) do
not distort the picture.
Keep Aspect Ratio/ Fill One Way
fills the screen
top-to-bottom or left-to-right, whichever way fits
first. If the aspect ratio of the picture is
less than
1.77, such as normal TV’s 1.33, the screen will show
blank areas on the left and right.
If the aspect ratio of the picture is greater than
1.77, such as wide-screen movies of 1.85, the screen
will show blank areas at the top and bottom.
Keep Aspect Ratio/ Crop
fills the screen completely
without distortion, but crops the picture on one side
or the other. If the aspect ratio of the picture is
less
than 1.77, such as normal TV’s 1.33, the picture will
be cropped (chopped off) at the top and bottom.
If the picture’s aspect ratio is greater, the picture
will be cropped at the left and right sides.
1 to 1/ Keep Original Size
maintains the original
size and aspect ratio of the picture. This may leave
blank areas on all four sides. For instance, a VGA pic-
ture (640 × 480) will occupy only a small area in the
center of the screen. For UXGA sources, this will crop
the picture top and bottom.