Celestron Firstscope 80 AZ Instruction Manual page 7

TELESCOPE
BASICS
Once your telescope has been fully assembled, you are ready to attach the accesso¬
ries.
Attaching the
Accessories
The Accessory Adapter
The accessory adapter is the short black tube with the set screw that allows the
attachment of visual accessories (i.e., the star diagonal, erect image diagonal,
eyepieces, etc.). The accessory adapter comes attached to the focus tube and is
removed only when attaching photographic accessories.
Erect Image Diagonal
The diagonal diverts the light at a right angle from the light path of the telescope.
For astronomical observing, this allows you to observe in positions that are more
comfortable than if you were to look straight through. The erect image diagonal is a
prism that diverts the light at a 45° angle to the light path of the telescope. In
addition to placing the eyepiece in physically comfortable viewing positions, this
accessory also provides correctly oriented images. To attach the diagonals:
1. Loosen the thumbscrew on the accessory adapter until it no longer obstructs the
inner diameter.
2. Slide the chrome portion of the erect image diagonal into the accessory adapter.
3. Tighten the thumbscrew on the accessory adapter to hold the diagonal in place.
If you wish to change the orientation to the erect image diagonal, loosen the thumb¬
screw on the accessory adapter until the diagonal rotates freely. Move the diagonal
to the desired position and tighten the thumbscrew.
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