8
2) Operating the AZ3 mount
This mount has controls for movement in altitude (up-down) and azimuth (left-right). Coarse
azimuth movement is controlled by a locking knob located near the tripod head for left-right
rotation. Loosen the knob to make large direction changes then lock it for fine
adjustments. Coarse Altitude movement is controlled by a friction bolt. Use the micro-
adjustment control cables to make small altitude and azimuth movements such as
centering objects in view. The micro-adjustment controls have limited travel so it is best
to center them on their threads before making a coarse adjustment.
3) Focusing
Slowly turn the focus knobs, one way or the other, until the image in the eyepiece
is sharp. The image usually has to be finely refocused over time, due to small
variations caused by temperature changes, flexures, etc. This often happens with
short focal ratio telescopes, particularly when they haven't yet reached outside
temperature. Refocusing is almost always necessary when you change an eyepiece
or adding or removing a Barlow lens (see Figure 11).
Summary of Contents for CDB804AZ3
Page 16: ...16 Made in China ...
