Celestron PowerSeeker 21041 Buku Petunjuk - Halaman 5
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3.
Remove caps from the eyepiece and place it into the diagonal (Figure 6). Lock it into place with the thumb
screw.
4.
The PowerSeeker comes with a 1.5x erecting eyepiece, primarily for daytime terrestrial viewing. This
eyepiece corrects the image you see in your telescope, so that it's both right side up and corrected from left to
right. Without this eyepiece, the image you see is reversed from left to right, when using the standard
diagonal. To use the erecting eyepiece, remove the diagonal and insert the erecting eyepiece directly into the
focuser. Then use a low power eyepiece such as the 20mm, inserting it directly into the erecting eyepiece. See
Figure 7.
5.
Your telescope also comes with 3x Barlow lens which triples the magnifying power of each eyepiece (see
Magnification section of the manual). To use the barlow lens, remove the diagonal and insert the barlow lens
directly into the focuser. Then start by using the low power eyepiece such as the 20mm, and insert it either
directly into the barlow lens or into the diagonal. See Figure 7.
1.
Remove the two small, silver thumbscrews located at the back of the telescope tube. See Figure 4.
2.
Place the finderscope bracket over the two holes in the telescope tube, lining up the holes on the finderscope
bracket with those in the telescope tube.
3.
Insert the thumbscrews through the finderscope bracket and thread them into the telescope tube.
1.
Locate a distant daytime object and center it in a low power eyepiece in the main telescope.
2.
Look through the finderscope and take notice of the position of the same object.
3.
Without moving the main telescope, turn the adjustment thumb screws located around the finderscope bracket
until the crosshairs of the finder are centered on the alignment object.
1.
Loosen the altitude slow motion rod locking screw (L) and the azimuth lock (N) on the base of altazimuth
mount, then move the telescope in the desired direction.
2.
Look through the finderscope and pan the telescope until the object appears in the field of view. Once it's in
the field, tighten the altitude and azimuth locks.
3.
To center the object in the eyepiece, rotate the fine adjustment ring located on the altitude slow motion rod
assembly (A).
1.
Once you have found an object in the telescope, turn the focusing knob (B) until the image is sharp.
2.
To focus on an object that is nearer than your current target, turn the focusing knob toward the eyepiece (i.e.,
so that the focusing tube moves away from the front of the telescope). For more distant objects, turn the
focusing knob in the opposite direction.
3.
To achieve a truly sharp focus, never look through glass windows or across objects that produce heat waves,
such as asphalt parking lots.
1.
When observing with a diagonal, the image will be right side up, but reversed from left to right.
2.
When observing straight through, with the eyepiece inserted directly into the telescope, the image will be
inverted. Also, the image in the finderscope is inverted.
The magnification (or power) of a telescope varies depending upon the focal length of the eyepiece being used and the
focal length of the telescope.
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