18
ALTITUDE AND AZIMUTH
1.
Your Zhumell Dobsonian is adjustable along two axes - altitude (up/
down) and azimuth (left/right). Adjustments to the telescope’s position
can be made along one or both axes at the same time.
2.
Gently take hold of the end of the OTA and move it either left or right (it
will spin about its central azimuth bolt) or up and down (it will rotate on
the Side Bearings on the OTA).
3.
The telescope can be positioned to view anywhere in the night sky, but
be sure to let it move naturally - never force your telescope to move.
BASICS FOR YOUR
ZHUMELL DOBSONIAN TELESCOPE
FOCUSING THE IMAGE
1.
With an eyepiece in the focuser, loosen both back thumbscrews on the
left side on focuser.
2.
Push or pull the focuser gently until image becomes as clear as possible.
3.
Alternatively, turn the large, up-down, rack-and-pinion knobs to adjust
the focus. The black knob will adjust in smaller increments than the
large silver knobs.
4.
The back thumbscrew will completely lock the focus. The front
thumbscrew will lock the push/pull ability, so that only the rack-and-
pinion knobs can be used to adjust focus.
5.
Tighten both knobs to completely lock the focuser.
