Orion 8 EQ Bedienungsanleitung PDF herunterladen (Seite 5)

Inserting the Eyepiece

Loosen the thumbscrew on the 1.25" adapter (Figure 4) and

remove the small dust cap. Insert the 25mm eyepiece into the

focuser and secure it with the thumbscrew.

Your telescope is now completely assembled and should

appear as shown in Figure 1.

4. Balancing the Telescope

To ensure smooth movement of the telescope on both axes of

the equatorial mount, it is imperative that the optical tube is

properly balanced. We will first balance the telescope with

respect to the right ascension (R.A.) axis, then the declination

(Dec.) axis.

1. Keeping one hand on the telescope optical tube, loosen

the R.A. lock lever. Make sure the Dec. lock lever is locked,

for now. The telescope should now be able to rotate freely

about the right ascension axis. Rotate it until the counter-

weight shaft is parallel to the ground (i.e., horizontal).

2. Now loosen both counterweight lock knobs and slide the

weights along the shaft until they exactly counterbalance

the telescope (Figure 5a). That’s the point at which the

shaft remains horizontal even when you let go with both

hands (Figure 5b).

3. Retighten the counterweight lock knobs. The telescope is

now balanced on the right ascension axis.

4. To balance the telescope on the declination axis, first tight-

en the R.A. lock lever, with the counterweight shaft still in

the horizontal position.

5. With one hand on the telescope optical tube, loosen the

Dec. lock lever. The telescope should now be able to rotate

freely about the Dec. axis. Loosen the tube ring clamps a

few turns, until you can slide the telescope tube forward

and back inside the rings. (this can be aided by using a

slight twisting motion on the optical tube while you push or

pull on it). (Figure 5c).

6. Position the telescope in the mounting rings so it remains

horizontal when you carefully let go with both hands. This

is the balance point for the optical tube with respect to the

Dec. axis. (Figure 5d)

7. Retighten the tube ring clamps.

The telescope is now balanced on both axes. When you

loosen the lock lever on one or both axes and manually point

the telescope, it should move without resistance and should

not drift from where you point it.

Figure 3b. Pull back on the tensioner and slide the finder scope

into its bracket until the O-ring is seated in the bracket ring.

Figure 5. Proper operation of the equatorial mount requires that the telescope tube be balanced on both the R.A. and Dec. axes. (a) With

the R.A. lock lever released, slide the counterweights along the counterweight shaft until it just counterbalances the tube. (b) When you let go

with both hands, the tube should not drift up or down. (c) With the Dec. lock knob released, loosen the tube ring lock clamps a few turns ands

slide the telescope forward or back in the tube rings. (d) When the tube is balanced about the Dec. axis, it will not move when you let go.

a. b. c. d.

Focus lock

thumbscrew

Focus

knobs

Figure 4. The 2" focuser of the SkyView Pro 8 EQ.

1.25" eye-

piece

adapter

2" eyepiece

adapter

Collimation

screw pair (3)

1 2 3 4 5 6 7 8 9 10 ... 19 20

Kommentare zu diesen Handbüchern

Keine Kommentare

Orion 8 EQ Bedienungsanleitung Seite 5

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Optische Geräte Orion 8 EQ