Bresser Junior 8850900 Instrucciones De Uso página 9

The magnification also depends on the focal width of the telescope tube. This telescope contains a tube
with a focal width of 400 mm.
Examples:
400 mm / 20 mm = 20X magnification
400 mm / 12.5 mm = 32X magnification
Focus wheel
Look through the telescope eyepiece (3) and hone in on a far away object that you can see well (for in-
stance, a church tower). Focus in on the object with the focus knob (1) in the way shown in Fig. 3.
Technical data:
• Design: achromatic
• Focal length: 400 mm
• Objective diameter: 40 mm
Smartphone holder
X
D
Notes on cleaning
• Clean the eyepieces and lenses only with a soft, lint-free cloth, like a microfibre cloth. To avoid scratching
the lenses, use only gentle pressure with the cleaning cloth.
• To remove more stubborn dirt, moisten the cleaning cloth with an eyeglass-cleaning solution, and wipe
the lenses gently.
• Protect the device from dust and moisture. After use, particularly in high humidity, let the device ac-
climatise for a short period of time, so that the residual moisture can dissipate before storing.
Possible observation targets
The following section details several interesting and easy-to-find celestial objects you may want to
observe through your telescope.
The Moon
The moon is Earth's only natural satellite.
Diameter: 3,476 km / Distance: 384,400 km from Earth (average)
The moon has been known to humans since prehistoric times. It is the second brightest object in the
sky, after the sun. Because the moon circles the Earth once per month, the angle between the Earth, the
moon and the sun is constantly changing; one sees this change in the phases of the moon. The time
between two consecutive new moon phases is about 29.5 days (709 hours).
Insert the eyepiece (3) into the smartphone holder and tighten the screw (X) to
the bracket firmly. Then set the smartphone holder with the eyepiece into the
zenith mirror (2) and tighten the clamping screws by hand firmly. Now start your
smartphone camera app and press your smartphone on the plate. Make sure
that it is properly secured. The camera should rest just above the eyepiece.
Place the smartphone exactly over the eyepiece, so that the image is exactly
centered on your display. It may be necessary to use the zoom function to fill out
the whole screen of your smartphone. The suction cups must be dry, clean and
free from all kinds of dust and dirt. We assume no responsibility for dropped and
broken smartphones due to incorrect handling.
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