The Telescope Tube - Celestron Inspire 90AZS Instruction Manual

THE TELESCOPE TUBE

To attach the telescope tube to your tripod and mount:
1. Loosen the two tube mounting bolts on the side of the dovetail
saddle on top of the mount.
2. Locate the dovetail bar on the bottom of the telescope tube
and slide it into the saddle. The eyepiece end of the telescope
tube should point in the same direction as the panning handle
on the mount.
3. When the dovetail is centered in the saddle, tighten the two
tube mounting bolts, starting with the larger one first. Finish by
tightening the smaller one.
4. Remove the lens cap when you are ready to observe by simply
pulling it off the lens shade.
THE ERECT DIAGONAL
The Inspire telescopes come with a 90° erect image diagonal.
This accessory uses a prism to bend the light at a 90° angle,
providing a more comfortable viewing position. It also gives you
a 100% correctly oriented image allowing you to easily use this
telescope for daytime terrestrial observing.
To install the erect image diagonal:
1. Remove the caps from both sides of the diagonal.
2. Loosen the setscrews on the back of the telescope focuser and
pull out the small dust cap.
3. Insert the smaller tube on the diagonal into the back of the
focuser and secure it by tightening the setscrews.
THE EYEPIECES
Your Inspire telescope comes with two eyepieces, a low power
(20 mm eyepiece) and a higher power eyepiece (10 mm eyepiece).
Whenever you set up your telescope, always start with the 20
mm eyepiece. Once you have your target centered in the 20 mm
eyepiece, you can switch to your higher power 10 mm eyepiece to
increase magnification and get a more detailed view.
To install an eyepiece:
1. Loosen the setscrews on the open end of the erect image diagonal.
2. Insert the silver barrel of the 20 mm eyepiece into the diagonal.
3. Tighten the setscrews to secure the eyepiece.
4. To see the sharpest image possible, you need to adjust the
telescope's focus. Look through the eyepiece and slowly turn
the focusing knobs until you see the sharpest image possible.
NOTE: You should always adjust focus whenever you change eyepieces or if another person views
through the telescope as the focus may be different for each individual.
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