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Prisma AF English Rev 1.00
the zoom buttons though image quality will
deteriorate.
Overview
Overview allows you to easily locate a point of
interest on the page you are viewing. Press and
release the Overview button to make the camera
zoom out fully and revert to full-colour mode. An “X”
is displayed in the centre of the screen as an aid to
location. Place the point of interest under the “X” and
press any key to restore the magnification to the
previous level.
Focus
The camera will continuously autofocus to achieve
the sharpest image. However, please be aware that
there is a limited range over which the camera can
focus. Raising the camera too high (greater than
30cms from the base of the camera to the page) or
placing the camera too low (less than 25cms from
the page) will mean the camera cannot focus at high
magnification correctly. If the image does not appear
to be in focus, try raising or lowering the camera to
correct it.
Brightness
The image brightness can be adjusted to suit your
preference. Press and hold the
Mode
button for
three seconds and text of the form “
Bri: 3
” will
appear in the centre of the screen. Use the
Zoom
Up
and
Zoom Down
buttons to adjust the image as
desired. Press
Mode
again to save the setting. The
setting you choose will be saved and used
subsequently for that mode of operation.
