Discovery Spark 769 EQ Guia Del Usuario página 13

DISCOVERY SPARK EQ TELESCOPES
CAUTION! Never look directly at the Sun — even for an instant — through your telescope or
finderscope without a professionally made solar filter that completely covers the front of the
instrument, or permanent eye damage may result. To avoid damage to the internal parts of your
telescope, make sure the front end of the finderscope is covered with aluminum foil or another non-
transparent material. Children should use the telescope under adult supervision only.
All parts of the telescope will arrive in one box. Be careful when unpacking it. We recommend keeping the original
shipping containers. In the event that the telescope needs to be shipped to another location, having the proper shipping
containers will help ensure that your telescope survives the journey intact. Be sure to check the box carefully, as
some parts are small. All screws should be tightened securely to eliminate flexing and wobbling, but be careful not
to overtighten them, as that may strip the threads. During assembly (and anytime, for that matter), do not touch
the surfaces of the optical elements with your fingers. The optical surfaces have delicate coatings on them that can
easily be damaged if touched. Never remove lenses or mirrors from their housing, or the product warranty will be
null and void.
Telescope optical system and construction
Discovery Spark EQ is a series of modern telescopes for entry-level and amateur astronomers. Reflectors are good for
studying solar system and bright deep-sky objects, while refractor telescopes are suitable for planetary observations
as well as for studying terrestrial objects.
This user manual is applicable to several refractor telescopes (fig. 1a) and reflector telescopes (fig. 1b) on equatorial
mounts. Read the user manual carefully to find the information about the assembling and adjustment of your telescope
model, and carefully follow the instructions.
Telescope assembly
•
Slowly loosen the tripod locking knobs and gently pull out the lower section of each tripod leg. Tighten the clamps
to hold the legs in place. Spread the tripod legs apart to stand the tripod upright.
•
Adjust the height of each tripod leg until the tripod head is properly leveled. Note that the tripod legs may not be
the same length when the equatorial mount is leveled.
•
Place the accessory tray on top of the bracket, and secure it with thumbscrews from underneath. Attach the
equatorial mount to the tripod head.
•
Turn the azimuth adjustment knob up and tighten the knurled knob underneath the tripod head to secure mount to
tripod (fig. 2).
•
Orient the mount vertically.
•
Loosen the Dec. lock knob. Rotate the mount 180°.
•
Loosen the R.A. lock knob located on the opposite side. Rotate the mount 180°.
•
Loosen the latitude lock knob. Set the angle according to your location latitude. Rotate the mount 180°.
•
Retighten the Dec. and R.A. lock knobs (fig. 3).
•
Slide the counterweights halfway along the counterweight bar.
•
Holding the counterweights with one hand, screw the counterweight bar into the threaded hole on the mount.
Tighten the locknut on the counterweight bar until it is locked.
•
Attach the slow-motion control to the worm gear mechanism. Tighten the locking screws to secure the control in
place (fig. 4a).
Telescope tube without ring clamps
•
Place the telescope tube at the saddle and balance it. Fix the telescope tube with the lock knobs provided (fig. 4a).
Telescope tube with ring clamp(s)
•
Remove the ring clamps from the telescope by releasing their thumbscrews and opening their hinges.
•
Using the bolts provided, fasten the ring clamps to the mount with a wrench.
•
Place the telescope tube between the rings and balance it.
•
Close the hinges around the telescope and retighten the thumbscrews. Do not overtighten (fig. 4b).
Optical accessories assembly
Your telescope can be equipped with additional accessories, such as eyepieces, diagonal mirror or prism, or a Barlow
lens. The accessories should be installed in well-defined ordering.
Refractors (fig. 5a): Loosen the focuser thumbscrew. Insert the diagonal mirror into the focuser tube and retighten the
thumbscrew to hold the diagonal mirror in place. Then, insert the desired eyepiece into the diagonal mirror and secure
it by retightening the thumbscrew. If a Barlow lens is needed, install it between the diagonal mirror and the eyepiece.
You can use the erecting eyepiece to get a direct image.
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