6
COLLIMATION
Periodically, you will find that it is necessary to align the optical
components of your telescope. This procedure is called collimation, and
is recommended for optimum telescope usage.
1.
Remove the eyepiece from the eyepiece holder and insert laser
collimator into eyepiece holder. Secure the laser collimator by
tightening thumbscrew.
2.
Turn the thumbscrew located on the side of the collimator to turn on
the collimator.
3.
Look through the hole in the side of collimator to see where the
laser is reflected onto the reticle. If you cannot see the laser reflected
back onto the reticle, align the secondary mirror by adjusting the
secondary mirror collimation screws until the laser is reflected onto
the inside of the collimator.
4.
Loosen the 3 locking screws on the bottom of the optical tube (the
thin ones that stick farther out from the back of the mirror).
5.
Align the laser to the center of the reticle by adjusting the 3 primary
mirror adjustment screws (the thick screws in the back of the mirror).
Do not over-turn these screws (max of ¼ turn at a time).
6.
Tighten the 3 locking screws on bottom of optical tube to lock the
primary mirror into place.
USING YOUR
ZHUMELL DOBSONIAN TELESCOPE
