WolfVision VZ-57plus User Manual - Handbuch (Seite 8)

WolfVision Visualizers offer the possibility of programming three presets for the functions: Zoom,
Focus, Iris, Light, Text, Macro, White Balance, Mirror position*, Positive/Negative and Black/White.
They can be recalled by pressing one of the three
PRESET-keys (#14) on the control panel or the
remote control.
This function is very useful for example if a user requires one preset for papers on the working surface,
one for working with slides (bottom light) and one for an object placed in front of the unit. During his
presentation the user just has to press one of the
PRESET-keys when he changes from one object to
PRESET FUNCTION
Quickly pressing: Recalling a preset
More than 2 seconds: Saving a new preset
* You can select in the unit's on-screen menu if
the mirror position should be stored in a
preset or not (see page 9). Default is: YES.
WHITE BALANCE ADJUSTMENT
IMPORTANT
Each time the lighting condition changes, the user should adjust the white balance of the Visualizer's
camera, in order to optimize the color reproduction. The Visualizer's top- and bottom
-light have the
same color temperature so normally a new white balance adjustment is not necessary when changing
from one light to the other, but if
there is also room light or sun light shining on the working surface,
the white balance should be adjusted.
Top light: First, zoom in on a white object (for example a white paper) until there is only white on the
screen. Then press the
WHITE-key (#22).
Bottom light: Turn on the bottom light with the LIGHT-key (#21). Remove everything from the working
surface. Zoom to the smallest picture. Then press the WHITE-key (#22).
You can adjust the white balance either for the top or for the bottom light and it works well with both
lights. When the white balance adjustment is finished successfully the message "WHITE OK" appears
on the monitor after a few seconds. The new white balance is stored automatically and is preserved
even if the power supply is interrupted.
7
WHITE
TEXT ENHANCEMENT
IMPORTANT
For improving the readability of text, sketches and x-rays press the TEXT-key (#16). This mode
enhances the contrast of the picture. Please note that in this mode the colors are darker than usual. To
switch off the text enhancement mode press the
TEXT-key again.
While the text mode is activated the TEXT-key on the control panel is illuminated red.
FREEZE
The current image can be frozen by pressing the FREEZE-key 7 .
The FREEZE-key is red illuminated if the freeze function is activated. The FREEZE-key also works as
image memory key if pressed for 2 seconds (see page 8).
The behavior of the FREEZE-key can be changed in the on-screen menu (see page 9).
(#1 )
FREEZE
For programming a preset just adjust every function as required and then keep one of the PRESET
keys pressed for more than 2 seconds. The on-screen menu tells you when the preset is stored.
When the presets are stored as mentioned above, all current settings like zoom-, focus- or mirror-
position are stored. Contrary to this, a user also has the opportunity to assign only specific functions
such as "Freeze", "Iris open/close", "Negative", "Negative/Blue", "Black/White" etc. to a
PRESET-key.
This can be done in the on-screen menu of the Visualizer (see page 9).