15
Fig.15
3. Double-click Knob: lock brightness or
unlock
(Fig.15).
The
brightness
adjustment knob fails when locking,
and
”LOCK” appears on the LCD screen;
Double-click the knob again to release
the lock and the
“LOCK” on the screen
disappears;
1.
Press + upward rotation: switch to
up lighting;
5.
Press + downward rotation: switch
to down lighting.
★
”LOCK” means that the user sets specific
brightness
when
using
a
certain
magnification objective, and uses the
lock function to prevent it from being
changed by another user. (In this case,
when switching to another magnification
objective,
the brightness automatically change to
the brightness of the corresponding
magnification,
but
the
brightness
adjustment knob fails.