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TIP: The higher the magnification you use the more light is required for a good illumination of the picture.
Therefore, always start your experiments with a low magnification.
5. Smartphone holder
Open the flexible holder and put your smartphone in it. Close the holder and make sure your phone is
properly secured. The camera must be positioned exactly above the eyepiece. Open the locking clip on the
back of the holder and fit the eyepiece exactly onto your smartphone camera. Now retighten the locking clip
and attach the smartphone adaptor to the eyepiece of your microscope. Now start the camera app. If the
image is not yet centered on your display, loosen the locking clip slightly and readjust. It may be necessary
to use the zoom function to fill the image on the display. A slight shading at the edges is possible. Remove
the smartphone from the holder after use!
WARNING:
Make sure that the smartphone can not slip out of the holder. Bresser GmbH assumes no liability for any
damages caused by a dropped smartphone.
6. Condition and prepare viewed objects
6.1. Condition
This microscope features transmitted light, so that transparent specimens can be examined.
If opaque specimens are being examined, the light from below goes through the specimen, lens and eyepi-
ece to the eye and is magnified en route (direct light principle).
Some small water organisms, plant parts and animal components are transparent by nature, but many
others require pretreatment — that is, you need to make a thinnest possible slice of the object by hand
cutting or using a microtome, and then examine this sample.
6.2. Creation of thin preparation cuts
Specimens should be sliced as thin as possible. A little wax or paraffin is needed to achieve the best
results. Put the wax into a heat-safe bowl and heat it over a flame until the wax is melted. You can use a
candle flame to melt the wax.
DANGER!
Be exremely carfeful when dealing with hot wax, as there is a danger of being burned.
Then, dip the specimen several times in the liquid wax. Allow the wax that encases the specimen to harden.
Use a MicroCut or other small knife or scalpel to make very thin slices of the object in its wax casing.
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