Becoming Familiar With Your New VisioDesk
19
Autofocus
9.2
VisioDesk has a permanent autofocus which is always active at power
on. That means, no matter how thick a book or how curved a page might
be, VisioDesk will always focus on the part displayed and thus always
present a sharp image on the display. This feature is also helpful when
reading text on a curved surface, such as a can or a medicine bottle. So
this is the setting you usually will prefer.
However, sometimes you want to fill in forms or crossword puzzles or
you want to paint your nails or view three-dimensional objects. This is
where fixed focus comes into play.
First, let us find that button. The auto focus button
is the second
button from the left. Press it to toggle auto focus on and off. On the
screen “AF ON“ or “AF OFF” will be displayed for a few seconds
respectively.
Let us test how this works. If you have already played with this button,
press the auto focus button once or twice and check for “AF ON” being
displayed to make sure, automatic focus is on. VisioBook will magnify the
document on the base plate and display a sharp image. Put your hand
on the document now. VisioBook will magnify your hand and you see the
skin of your hand is focused now while the characters on your document
are blurred. The same may happen when you want to fill in a form.
Instead of showing sharp letters, VisioBook may focus on the back of
your hand holding a pencil. If you remove your hand, the characters are
sharp again.
So let us try the same with fixed focus now. Place a form on the base
plate. If VisioBook does not show sharp characters, press the auto focus
button. “AF ON“ will be displayed. Now that the characters are sharp,
press the auto focus button again to switch it off. “AF OFF“ will be
displayed. If you fill in the form with a pencil now, VisioBook will always
stay in focus on the characters and not on your hand. Once finished, do
not forget to turn auto focus on again by pressing the auto focus button.
Summary of Contents for VisioDesk
Page 1: ...VisioDesk User Guide Item number 106010H04 User guide version 1 5 English 06 2017...
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Page 13: ...VisioDesk Control Panel 13 7 VisioDesk Control Panel...
Page 28: ...Compliances 28...
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