Aligning The Secondary Mirror; Aligning The Primary Mirror - Celestron LCM Serie Manual De Instrucciones

Collimation is a painless process and works like this:
Pull off the lens cap which covers the front of the telescope and look
down the optical tube At the bottom you will see the primary mirror
held in place by three clips 120º apart, and at the top the small oval
secondary mirror held in a support and tilted 45º toward the focuser
outside the tube wall
The secondary mirror is aligned by adjusting the three smaller screws
surrounding the central bolt The primary mirror is adjusted by the
three adjusting screws at the back of your scope The three locking
screws beside them serve to hold the mirror in place after collimation

ALIGNING THE SECONDARY MIRROR

Point the telescope at a lit wall look into the focuser without the eyepiece installed You may have to twist the focus knob a few turns until
the reflected image of the focuser is out of your view Keep your eye against the back of and centered in the focus tube Look for the three
clips holding the primary mirror in place If you can't see them, it means that you will have to adjust the three bolts on the top of the secondary
mirror holder, using either an Allen wrench or Phillip's screwdriver You will have to alternately loosen one and then compensate for the slack
by tightening the other two Stop when you see all three mirror clips Make sure that all three small alignment screws are tightened to secure
the secondary mirror in place
Primary Mirror Clip

ALIGNING THE PRIMARY MIRROR

There are 3 large bolts and 3 small screws at the back of your telescope The large bolts are the adjusting screws and the small screws are the
locking screws Loosen the large bolts by a few turns Now run your hand around the front of your telescope keeping your eye to the focuser,
you will see the reflected image of your hand The idea here being to see which way the primary mirror is defected; you do this by stopping at
the point where the reflected image of the secondary mirror is closest to the primary mirror's edge
When you get to that point, stop and keep your hand there while looking at the back end of your telescope- is there an adjusting screw there?
If there is you will want to loosen it (turn the screw to the left) to bring the mirror away from that point If there isn't an adjusting screw there,
then go across to the other side and tighten the adjusting screw on the other side This will gradually bring the mirror into alignment (It helps
to have a friend to help for primary mirror collimation Have your partner adjust the adjusting screws according to your directions while you look
in the focuser)
After dark, go out and point your telescope at Polaris, the North Star With an eyepiece in the focuser, take the image out of focus You will
see the same image only now, it will be illuminated by starlight If necessary, repeat the collimating process only keep the star centered while
tweaking the mirror
Secondary Mirror
Primary Mirror
Primary Mirror
Primary Mirror Clip
Ignore the reflected
image for now
Stop and keep your
hand here
Focuser
Support for
secondary mirror
Secondary Mirror
Primary Mirror Clip
Primary Mirror Clip
Both mirrors aligned with
eye looking in focuser
ENGLISH I 31