21
to change this during observation:
regulate the brightness with the ad-
justment knob (see above in Fig. 1)
or changing the settings with the EV
functions on the LCD monitor. The
EV function increases or lowers the
brightness of the picture on the LCD
monitor; you can change it by push-
ing the right or left direction keys (
,
) (Fig. 3).
If the specimen you are observing is
non-transparent or has a dark color,
you normally need more light in order
to bring out certain characteristics or
details. To do so, it is best if you sim-
ply increase the intensity of the light
by turning the brightness adjustment
knob to the highest setting.
You can find the optimal lighting by
experimenting with different settings,
since each object requires its own
type of lighting. The same is true for
an object when different magnifica-
tions are used.
Observing an Object
1. Place the specimen in the slide
holder. In doing so, keep the spec-
imen and the slide holder parallel
(Fig. 4).
2. Place the slide holder, direction
arrow pointing inward, under the
clips of the mechanical stage (Fig.
5). Align the slide holder by mov-
ing it forwards/backwards and
to the left/to the right so that the
desired portion of the specimen is
under the objective.
3. With the aide of the objective
nosepiece (Fig. 1, No. 3), turn the
objective lenses (Fig. 1, No. 6) un-
til the 4x objective is directly over
the specimen. Always start your
observations with the lowest mag-
nification (4x for this microscope,
which leads to a total magnification
of 25x) and than proceed to work
through the higher magnifications.
With the 4x objective, you will get
the widest field of vision and the
brightest picture. Make the pic-
ture sharp by using the focus knob
(Fig. 1, No. 7).
Fig. 5
Direction Slide Holder Specimen
Fig. 4
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