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throughout the world are listed later in this manual.
Example: The latitude of New York City is 41° . The center tripod leg should be extended so that the center of the
thumbscrew is set next to the 41° reading on the scale. Note: With the center tripod leg threaded fully into the
center hole of the drive base, the latitude scale may be at an inconvenient position for reading the latitude scale
(e.g., the scale may be facing the drive base). This situation can be remedied as follows:
a. Remove the center tripod leg from the telescope's drive base.
b. Unthread completely the small thumbscrew which locks the leg's inner section to its outer section.
c. Rotate the inner tripod section 180 ° inside the outer section.
d. Replace the thumbscrew which locks the inner section to the outer section.
e. Replace the center leg in the drive base. The latitude scale will now be placed at an easily readable
position.
4. Unlock the R.A. Lock and Dec Lock (11 and 21, Fig 1) and rotate the telescope so that it is oriented as shown in
Fig. 8. Re-lock the R.A. Lock and Dec Lock. In this orientation the telescope's optical tube is lined up parallel to the
tripod's center leg.
Fig. 7: The ETX ready for astronomical observing.
(1) Fixed- length tripod legs; (2) Scribed scale for
reading latitude of observing location; (3) Center
tripod leg; (4) Thumbscrew for locking extension
of center leg; (5) Indicator arrow for Dec. circle;
(6) Indicator arrow for R.A. circle; (7) R.A. Setting
Circle; (8) Dec. Setting Circle.
Fig. 8: To polar align the ETX, place the
telescope's optical tube parallel to the center
tripod leg, as shown. Then lift and orient the entire
telescope until the telescope's polar axis (dotted
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