11 new_english, Sing the leveling bubble, Alancing the telescope – Sky-Watcher EQ5 MOUNT User Manual

Page 11

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11

Leveling bubble

Fig.d

U

sing the leveling bubble

For best telescope performance, the equatorial mount

should be properly leveled. A level tripod allows easier

fine adjustment of controls and better weight distribution.

This equatorial mount includes a small leveling bubble

near its base (Fig.d). Adjust the height of each tripod leg

until the bubble appears in the center of the circle. Note

that the tripod legs may not be at same length when the

equatorial mount is level.

B

alancing the telescope

Fig.c

N

For best results, adjust the altitude of

the mount to between 15º and 30º if

possible, by using the altitude

adjustment T-bolt.

Slowly unlock the R.A. and Dec. lock

knobs. Rotate the telescope until

both the optical tube and the

counterweight rod are horizontal to

the ground, and the telescope tube

is to the side of the mount (Fig.c).

Tighten the Dec. lock knob.

Move the counterweight(s) along the

counterweight

rod

until

the

telescope is balanced and remains

stationary when released.

Tighten the counterweight thumb

screws to hold counterweight(s) in

their new position.

A Telescope should be balanced before each observing session. Balancing reduces stress on the telescope

mount and allows precise control of micro-adjustment. A balanced telescope is specially critical when using

the optional clock drive for astrophotography. The telescope should be balanced after all accessories

(eyepiece, camera, etc.) have been attached. Before balancing your telescope, make sure that your tripod is

balanced and on a stable surface. For photography, point the telescope in the direction you will be taking

photos before performing the balancing steps.

R.A. Balancing

1)

2)

3)

4)

5)

1)

2)

3)

4)

5)

Dec. Balancing
All accessories should be attached to the telescope before balancing around the declination axis. The R.A.

balancing should be done before proceeding with Dec. balancing.

For best results, adjust the altitude of the mount to between 60º and 75º if possible.

Release the R.A. lock knob and rotate around the R.A. axis so that the counterweight rod is in a horizontal

position. Tighten the R.A. lock knob.

Unlock the Dec. lock knob and rotate the telescope tube until it is parallel to the ground.

Slowly release the telescope and determine in which direction it rotates. Loosen the telescope tube rings and

slide the telescope tube forward or backward in the rings until it is balanced.

Once the telescope no longer rotates from its parallel starting position, re-tighten the tube rings and the Dec.

lock knob. Reset the altitude axis to your local latitude.

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