Nexcope NE620T, Manual

Page: 42 / 64

42
5
VARIOUS OBSERVATION METHODS
8
10
9
BF 10/20/40
BF
R
R L
L
100
BF
9
E
Illustration 030 E: Settings for phase contrast: Mounting corresponding phase contrast slider.
With both sliders, phase contrast and bright
field (BF) observation is possible.
• 10/20/40/BF phase contrast slider
matches with the 10x/20x/40x phase
contrast objectives.
• 100/BF phase contrast slider matches
with the 100x phase contrast objective.
Loosen the right-hand screw (9) of the phase
contrast slider.
Insert the phase contrast slider into the corre-
sponding hole of condenser (8).
Attach the right screw (9) of the slider and
screw it tight.
Then carefully raise the condenser holder
to its highest position (see picture C reverse
process).
The condenser lens should not touch
the slide.
By pulling or pushing the right (R) or left
screw (L), you can quickly and easily switch
between phase contrast and bright field (BF)
observation.
Turn the aperture diaphragm ring (10) of the
condenser to maximum position 100/PH/D.
Make sure that the phase contrast
slider is always fully aligned in the
light path.
The screws on the left and right side
hold the phase contrast slider in po-
sition.