Bresser NATIONAL GEOGRAPHIC Instrucciones De Uso página 19

EN
4. Observation (electronic light source)
For observation with the electronic light source (6) you need to insert 2 AA batteries 1.5 V, in the battery
compartment (8) on the base of the microscope (7). The battery compartment is opened using a Phillips
screwdriver. Insert the batteries with the correct polarity (+/- indication). Put the battery cover first into
the small opening so that the lid fits perfectly. Now you can tighten the screw. The lighting is switched on
when you turn the switch on the microscope base. Now you can observe in the same way as described in
the previous section.
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
Attach the smartphone holder to the eyepiece.
The suction cups must be clean and free from dust and dirt. A slight moistening is helpful.
Now press your smartphone on the retaining plate and make sure that it is properly secured.
As a backup, you should secure it with the enclosed rubber strap.
Smartphones with a rough surface will not hold as good as smartphones with a smooth surface.
Now start the Camera app.
The camera needs to rest just above the eyepiece. Center the smartphone exactly over the eyepiece, so the
image can be seen precisely centered on your screen.
In some cases you need to adjust with the zoom function to display the image fullscreen. A light shading
at the edges is possible.
Take the smartphone carefully off the holder after use.
NOTE:
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-
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