Bedienungsanleitung Celestron 60LCM (Seite 21 von 35) (Englisch)

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ﬁxed optical systems that should not come out of collimation. The

LCM 76, and 114 however has three collimation screws that can

be used to adjust the alignment of the primary mirror.

To check if your telescope is in collimation the following

diagram will help you. If you look into the eyepiece adapter

(withoutaneyepiece)atthetopofthefocuser,thisiswhat

you should see. If the reﬂection of your eye is off center, then

collimation is necessary.

Aligning the Secondary Mirror

The following describes the procedure for daytime collimation

of your telescope using the optional Newtonian Collimation

Tool(#94182)offeredbyCelestron.

If you have an eyepiece in the focuser, remove it. Using the

focusing knobs, rack the focuser tube in completely. You will

be looking through the focuser at a reﬂection of the secondary

mirror, projected from the primary mirror. During this step,

ignore the silhouetted reﬂection from the primary mirror. Insert

the collimating cap into the focuser and look through it. With

the focus pulled in all the way, you should be able to see the

entire primary mirror reﬂected in the secondary mirror. If the

primary mirror is not centered in the secondary mirror, adjust

the secondary mirror screws by alternately tightening and

loosening them until the periphery of the primary mirror is

centered in your view. DO NOT loosen or tighten the center

screw in the secondary mirror support, because it maintains

proper mirror position.

Aligning the Primary Mirror

Now adjust the primary mirror screws to re-center the reﬂection

of the small secondary mirror, so its silhouetted against the view

of the primary. As you look into the focuser, silhouettes of the

mirrors should look concentric. Repeat steps one and two until

you have achieved this. Remove the collimating cap and look

into the focuser, where you should see the reﬂection of your

eye in the secondary mirror.

Adjustments to the collimation of the telescope can be made

by turning the collimation adjustment knobs located at the rear

of the optical tube. First loosen the three Phillips head screws

on the rear cell of the tube. Turn each collimation knobs, one at

a time, until the reﬂected image of your eye in the secondary

mirror is centered in the primary mirror. Once the telescope

is collimated, tighten the Phillips head screws until you feel a

slight resistance. Do not over tighten the screw.

If your telescope is out of collimation, the best way to re-

collimate it is with a good collimation tool. Celestron offers a

NewtonianCollimationTool(#94183)withdetailedinstructions

that make it an easy chore.

newToniAn coLLiMATion views As seen Through The Focuser using The coLLiMATion cAP

Secondary mirror

needs adjustment

Primary mirror

needs adjustment

Secondary

Mirror

Primary

Mirror

Clip

Mirror Support

Screws

Collimation

Adjustment Knobs

Both mirrors

aligned with the

collimating cap in

the focuser

Both mirrors

aligned with your

eye looking into

the focuser

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Celestron 60LCM Seite 21

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