Product guide

4) SQ1 (Squeeze1): This is to be used
when the source is 4:3 full-frame and
the display is 16:9. It horizontally
decreases the image size by a ratio of
3/4 and centers the resulting image
horizontally with dark gray bars on
either side of the image.
5) SQ2 (Squeeze2): This is to be used
when the source is 4:3 full-frame and
the display is 16:9. It horizontally
decreases the image size by a ratio of
3/4 and centers the resulting image
horizontally with medium gray bars
on either side of the image.
6) SQ3 (Squeeze3): This is to be used
when the source is 4:3 full-frame and
the display is 16:9. It horizontally
decreases the image size by a ratio of
3/4 and centers the resulting image
horizontally with light gray bars on
either side of the image.
The Output Control also has a “Curtain”
adjust feature that allows you to crop the
sides of a 4:3 image further when using
one of the Squeeze modes. This is useful
if you are using gray bars on the sides of
the 4:3 image, but the 4:3 image itself
has a black border on the sides. This is
explained further under Output Control,
Curtain, page 14.
Picture Control
The Picture Control parameters govern
the appearance of the image produced by
the iScan Ultra’s image processor. Each
time you press the Picture Control
control, it cycles down to the next
parameter on the list. These parameters
are explained below.
Brightness
This control adjusts the brightness of the
overall image that is output from the
iScan Ultra. It will adjust the brightness
of the black level as well as the other
color levels. If you turn it up too high, it
may make black look gray. In general,
you should adjust this up until you see
the black areas of your display just begin
to turn gray and then back it down just
below that point.
Contrast
Contrast adjusts the ratio between white
and black signal levels and is effectively a
gain control. The difference between this
and the Brightness control is that this
adjusts the difference between the bright-
est and darkest part of the image. Please
note that all displays have a maximum
white level. Going beyond this level will
only “clip” the upper gray levels and you
will lose color resolution at the brighter
levels. You should adjust this control up
until you see the brighter levels of your
image begin to wash out and then back it
down just below that point.
Saturation
The iScan Ultra allows you to control the
Saturation of the image independent of
the display. Saturation is the same as the
“Color” control on most TVs and will con-
trol the richness of the color in the image.
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Displays and Controls (continued)