Digital Zoom; Text Enhancement - WolfVision VZ-C11 Instructions Manual

DIGITAL ZOOM

When zooming in, the zoom stops at the smallest image the OPTICAL zoom can pick up. If you press
the ZOOM IN-key again after the stop, the unit activates its digital zoom extension and you can zoom
in further. The unit has a 4x digital zoom.
The behaviour of the digital zoom can be changed in the on-screen menu - see page 9.
Please note that the resolution in the digital zoom area is lower than in the optical zoom area!
BOTTOM LIGHT / LIGHTBOX (optional)
An external lightbox (bottom light) is recommended for dark transparent
material such as x-rays or for very small transparent material such as slides.
When a lightbox is used, the top light of the Visualizer should be switched off with the LIGHT-key (#18).
Using a bottom light has the disadvantage that the Synchronized Lightfield of the top light no longer
marks the pick-up area of the built-in camera.
When switching off the top light, the Ceiling Visualizer also switches the white balance adjustment from
"one-push" white balance to "auto-tracking" white balance. This compensates the varying color
temperatures of different light sources - see page 7 and 9.
The recommended lightbox for the Ceiling Visualizer is the WolfVision Lightbox LB-38.
WORKING WITH TRANSPARENCIES
Lightbox
(optional)

TEXT ENHANCEMENT

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.
The working surface of the Visualizer (#9) has a special crystalline white
color, which is especially designed for perfect reproduction of
transparencies.
Even if you own an optional light box, it is recommended to use the top
light for transparencies, because of the better color reproduction and the
advantage that the Synchronized Lightfield still shows the pickup-area of
the built-in camera.
However, in these situations it is recommended to use a bottom light:
- If the transparency is very dark
- If the transparency is very wavy and causes reflections
- If the room light causes reflections on a transparency
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