Celestron Omni XLT AZ 102 Guide De L'utilisateur page 5

THE EYEPIECE
Your telescope comes with a 25 mm Plössl eyepiece,
which will give a moderately wide field of view. Additional
eyepieces can be purchased to increase or decrease the
magnification to your desired level.
To install an eyepiece on the 102 mm refractor:
1. Loosen the setscrews on the open end of the star
diagonal.
2. Insert the silver barrel of the 25 mm eyepiece into the
star diagonal.
3. Tighten the setscrews to secure the eyepiece
4. To see the sharpest image possible, focus by looking
through the eyepiece and slowly turning the focusing
knobs until the image comes into sharp focus.
To install an eyepiece on the
114 mm and 130 mm Newtonian:
1. Loosen the setscrews on the open end of the star
diagonal.
2. Insert the silver barrel of the 25 mm eyepiece into the
star diagonal.
3. Tighten the setscrews to secure the eyepiece
4. To see the sharpest image possible, focus by looking
through the eyepiece and slowly turning the focusing
knobs until the image comes into sharp focus.
THE STARPOINTER PRO FINDERSCOPE
Your telescope comes with a Starpointer Pro Finderscope
that you will use as a sighting tool when aiming the telescope
at a target.
To install the finderscope:
1. Slide the finderscope bracket into the dovetail slot on
the telescope tube near the focuser. The large window
on the finder should be facing the front of the telescope.
2. Secure the bracket by tightening the setscrew on the
dovetail slot.
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