MicroLinks VT300 - user guide - Manual (Page 14)

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to charging can be provided by USB power supply device or
USB connection port of computer.
The following images are presented while charging
 USB Source
: the graphic will be presented under two
circumstances. One is insert USB power supply without
using battery, and the other is insert USB source and use
full-charged.
(F) Optical Digital Magnification : represents current
magnification rate.
 The optical zooming rate will be changed while adjusting
the black indicator on the wheel of Focus. Please refer to the
following.
Long Shot Low Mag.(L) High Mag.(H)
 Digital magnification rate can be adjusted by the buttons of
zoom out ( ) and zoom in ( ). The magnification is
divided into 8 stages and can be up to 4 times with 0.5 times
per stage. The image can be enlarged to 47 times when
combining optical and digital magnifications. The rates at
different stage are as follows:
10x optical rate [10* (1+0.5*stage)]
Stage 1 2 3 4
Rate 15x 20x 25x 30x
Stage 5 6 7 8