Celestron CGE1400 Kullanım Kılavuzu - Sayfa 4
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3.
Tighten the set screw on the star diagonal to hold the eyepiece in place.
To remove the eyepiece, loosen the set screw on the star diagonal and slide the eyepiece out. You can replace it
with another eyepiece (purchased separately).
Eyepieces are commonly referred to by focal length and barrel diameter. The focal length of each eyepiece is
printed on the eyepiece barrel. The longer the focal length (i.e., the larger the number) the lower the eyepiece power
and the shorter the focal length (i.e., the smaller the number) the higher the magnification. Generally, you will use
low-to-moderate power when viewing. For more information on how to determine power, see the section on
"Calculating Magnification."
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The Celestron tube assembly come with a finderscope used to help you locate and center objects in the main field of
your telescope. To accomplish this, the finder has a built-in cross-hair reticle that shows the optical center of the
finderscope.
Start by removing the finder and hardware from the plastic wrapper. Included are the following:
• Finderscope
• Finder Bracket
• Rubber O-ring
• Three Nylon Tipped Thumbscrews (10-24x1/2")
• Two Phillips Head Screws (8-32x1/2" or 10-24x1/2")
To install the finderscope:
1.
Attach the bracket to the optical tube. To do this,
place the curved portion of the bracket with the
slot over the two holes in the rear cell.
bracket should be oriented so that the rings that
hold the finder are over the telescope tube, not the
rear cell (see Fig 1-4). Start threading the screws
in by hand and tighten fully with an Allen
wrench.
2.
Partially
thread-in
thumbscrews that hold the finder in place inside
the bracket. Tighten the screws until the nylon
heads are flush with the inner diameter of the
bracket ring. Do NOT thread them in completely
or they will interfere with the placement of the
finder. (Having the screws in place when the finder is installed
will be easier than trying to insert the screws after the finder has
been installed.)
3.
Slide the rubber O-ring over the back of the finder (it will NOT fit over the objective end of the
finder). It may need to be stretched a little. Once on the main body of the finder, slide it up about one
inch from the end of the finder.
4.
Rotate the finder until one cross hair is parallel to the R.A. axis and the other is parallel to the DEC
axis.
5.
Slide the eyepiece end of the finder into the front of the bracket.
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the
three
nylon-tipped
The
4
Finderscope
Nylon
Adjustment
Screw
Finder Bracket
Rear Cell
Figure 1-4