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31
4
QUICK GUIDE
4
QUICK GUIDE
6
Settings on the zoom unit
A
Illustration xx A: Focusing controls.
2a
2b
1b
1a
Focusing controls
To adjust the focus, rotate the focusing
knobs (1,2) on the right and left sides of
the stereo microscope.
Coarse focusing knobs (1a, 1b):
Pre-focusing, large distance between
specimen and objective.
Fine focusing knobs (2a, 2b):
The fine focus is used for image sharp
-
ness. Fine and precise regulation of the
distance between the specimen and the
objective.
B
Illustration xx B: Relationship between focusing knobs and zoom
unit.
2
3
1
Relationship between focusing knobs
and zoom unit
NOTE:
Familiarize yourself with
the correlation between the di-
rection of rotation of the focusing
knobs and the vertical movement
of the zoom unit.
Turning the focusing knobs (1,2)
forward
Zoom unit (3) moves downwards
Turning the focusing knobs (1,2)
backward
Zoom unit (3) moves upwards
a) Adjust the focus using the focusing knobs
A
Illustration xx/ A: Zooming knobs.
Zooming knobs
Turn the zooming knobs (1a, 1b) on the
right and left of the zooming body (2) to
change the magnification.
Turning the knob forward
Magnification decrease
Turning the knob backward
Magnification increase
The magnification values are marked on
the right-hand zooming knob (1b).
B
Illustration xx/B: Magnification details.
Zoom ratio
18:1
Zoom range
0.75x – 13.5x
Total magnification
(1x objective, 10x eyepiece)
7.5 – 135x
3
Magnification values
Turning the zooming knobs cause the
magnification to change in the range
from 0.75x to 13.5x (18:1 zoom ratio).
The following magnification steps (3) are
possible:
0.75x, 1x, 2x, 3x, 4x, 5x, 6x, 7x, 8x, 9x, 10x,
11x, 12x, 13x and 13.5x
NOTE:
At the following magni-
fication steps, the zooming knobs
engages with an audible “click”:
0.75x (starting position), 1x, 2x, 3x,
6x, 10x, 13.5x (final position).
b) Set desired magnification on the zooming knob with scale
1a
1b
2