Celestron FIRSTSCOPE 80 EQ - Page 7

D. To quickly move the telescope around horizontally:
1. L o osen the horizontal adjustment knob (#28), move the telescope to the position desired and then
tighten the knob.
E. To focus the telescope and align the finderscope:
1. Remove the front lens cover (#26) and remove the eyepiece adapter from the diagonal (#2).
2. With the 25mm eyepiece tight in the diagonal (#2), position the telescope tube to look at any
object about one mile or further away during the day. You may need to use the flexible cables to
get the object in the center of the field. To focus, turn the focusing knob (#9) until your chosen
object is in sharp focus.
Remember to use outdoors only as you should not look through windows which may
distort the image.
3. Look through the finderscope (with its lens covers removed). If the object being observed is not
visible in the finderscope or is not in the center of the finderscope crosshairs, then you need to
align the finderscope.
Use the finderscope adjustment screws (#4) to align the finderscope with the main telescope by
tightening and loosening these screws until the object is centered on the crosshairs.
Once the finderscope is aligned with the main telescope, it makes it easy to find celestial objects.
You find the desired object in the finderscope first (since it has a wide field) and then look at the
narrow field but much more powerful main telescope for detailed views.
4. If the image in the finderscope is not sharp, then turn the finderscope eyepiece (#6) until the
image is sharp.
5. Do not be alarmed when you look through the finderscope and telescope and the object is upside
down and reversed left to right. This is normal with an astronomical telescope.
F. Preparation for astronomical observing requires that you:
1. Orient the telescope so that the right ascension (polar) axis is pointing as close to true north as
possible. Use a magnetic compass if you are not sure which way north is.
2. Make sure the mount is level. A carpenters level may be helpful.
3. Recheck all hardware and knobs to make sure all are tight.
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