Visio Braille Visio 24, Руководство пользователя

Страница: 17 / 30

Get to know your new VISIO 24 17
Sometimes, however, you want to fill out a form or a crossword puzzle, you may
also want to paint your fingernails or take a closer look at a 3-dimensional object.
This is where the fixed focus comes into play.
The autofocus button is the second from the left on the control unit. If you press
this, you switch the autofocus between on and off.
Now let's try how it works. If you've messed around with this button, press the au-
tofocus button once and turn the zoom control a little to the right.
VISIO 24 enlarges the original and focuses it automatically.
If this is not the case, press the autofocus button repeatedly and the VISIO 24 will
focus the original.
Now place your hand on the template. VISIO 24 now enlarges your hand and you
can see that your skin is now in focus and the letters at the edge are blurred. The
same thing can happen when you want to fill out a form. Instead of making the
letters sharp, it is possible that your hand, which is holding the pen, is sharp and
the letters are blurred. If you take your hand away, the letters become sharp
again.
Now let's try the same thing with the autofocus off. To do this, place a form on the
XY-table. You can see that the letters are sharp, press the autofocus button
again to switch it off. If you now fill in the form with a pen, VISIO 24 will still keep
the letters in focus and will no longer focus your hand. When you're done, don't
forget to turn the autofocus back on with the autofocus button.
An additional feature of your Visio 24 is to switch itself off after 4 hours without
use. Should you accidentally not switch off your Visio 24, it will switch off itself af-
ter this time.
You did it! You are now familiar with all the setting options and functions of VISIO
24.
We hope you enjoy your new VISIO 24 CCTV device.