7
2.
Point the telescope at your target and center it in the main optics of the telescope. You may have to
move the telescope slightly to center your target.
3.
Adjust the screws on the finderscope bracket, tightening one while loosening another, until the cross
hairs are centered on the target seen through the telescope.
If the image orientation through the finder (on the G-5) is inverted (i.e., upside down and backwards left-to-
right), it may take a few minutes to familiarize yourself with the directional change each screw makes on the
finderscope.
The Visual Back (for the G-5 only)
The visual back allows you to attach most visual accessories to the telescope. If you use the 1-1/4" star
diagonal or if you want to insert the eyepiece into the telescope without a diagonal, then the visual back
must be attached to the rear cell of your G-5 telescope (see Figure 4). To attach the visual back:
1.
Remove the protective cap from the back of your telescope. It is pressed onto the rear cell.
2.
Place the slip ring on the visual back over the threads on the rear cell.
3.
Tighten by rotating the slip ring clockwise until tight.
Once this is done, you are ready to attach other accessories such as eyepieces, and diagonal prisms. If you
want to remove the visual back, rotate the slip ring counterclockwise until it is free of the rear cell.
The Star Diagonal
The star diagonal is a prism (or mirror) that 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. To attach the star diagonal:
1.
Turn the thumbscrew on the visual back (or the rear cell for the G-3 telescope) until its tip no longer
extends into (i.e., obstructs) the inner diameter of the visual back.
2.
Slide the chrome portion of the star diagonal into the visual back (or rear cell).
Fig 4 – Rear Cell Configuration for G-5
Fig 5 – Rear Cell Configuration for G-3
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