Celestron OMNI XLT 102 manual Setting up the Tripod

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This section covers the assembly instructions for your Celestron Omni XLT telescope. The equatorial mount is exactly the same for all the Omni telescope models and the optical tubes have some differences which will be noted. Your Omni telescope should be set up indoor the first time so that it is easy to identify the various parts and familiarize you with the correct assembly procedure before attempting it outdoor.

Each Omni telescope comes in two boxes. One box contains the tripod, tripod accessory tray/brace, equatorial mount, counterweight bar, two counterweights, R.A. knob, Dec knob, polar axis polar cap, and a Phillips head screwdriver. The second box contains the telescope optical tube assembly, finderscope and bracket, eyepiece, and other standard accessory items per the specific model that you have.

Setting up the Tripod

Remove the tripod from the box that it is in (Figure 2-1). The Omni tripod comes with an all metal center leg brace/accessory tray to give rock solid support to the mount. The tripod comes fully assembled with a metal plate, called the tripod head that holds the legs together at the top. In addition, there is a central rod that extends down from the tripod head that attaches the equatorial mount to the tripod. To set up the tripod:

1.Stand the tripod upright and pull the tripod legs apart until each leg is fully extended. The tripod will now stand by itself (Figure 2-2). Once the tripod is set up, you can adjust the height at which it stands.

2.Loosen the lever (turn counterclockwise) on the leg clamp so that the tripod leg can be adjusted (Figure 2-3).

3.Slide the center portion of the tripod leg away from the tripod head until it is at the desired height.

4.Tighten the levers (turn clockwise) on each leg clamp to hold the legs in place.

5.The standard height of the tripod is 33” and it can be extended at any height up to a maximum of 47”. Remember that the tripod will be the most rigid and stable at the lowest height.

Figure 2-1

Figure 2-2

Figure 2-3

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Contents Omni XLT Series Telescopes Table of Contents Astrophotography Page Omni XLT 102 Refractor Omni XLT 150 Newtonian Omni XLT 127 Schmidt-Cassegrain Setting up the Tripod Attaching the Equatorial Mount Installing the Counterweight Bar Attaching the Center Leg BraceInstalling the Counterweights Attaching the Slow Motion Control Knobs CablesAttaching the Telescope Tube to the Mount Installing the Finderscope Installing the Visual BackInstalling the Star Diagonal Installing the EyepiecesMoving the Telescope Manually Balancing the Mount in R.AAdjusting the Mount Balancing the Mount in DECAdjusting the Mount in Altitude Adjusting the Mount in AzimuthPage Page Focusing Image OrientationAligning the Finderscope Calculating MagnificationDetermining Field of View General Observing HintsCelestial Coordinate System Motion of the Stars Latitude Scale Pointing at PolarisFinding the North Celestial Pole Polar Alignment in the Southern Hemisphere Polar Alignment with the Latitude ScalePointing at Sigma Octantis Finding the South Celestial Pole SCPDeclination Drift Method of Polar Alignment Aligning the R.A. Setting Circle Using the R.A. Vernier Scale 11 Vernier ScaleObserving the Moon Lunar Observing HintsObserving the Planets Planetary Observing HintsObserving the Sun Solar Observing HintsObserving Deep Sky Objects Seeing ConditionsUsing the Lens Cap Aperture Stop with Refractor Telescopes SeeingPiggyback Photography Using Digital Cameras Eyepiece Projection for a Schmidt-Cassegrain FullLong Exposure Prime Focus Photography Planetary and Lunar Photography with Special Imagers CCD Imaging for Deep Sky Objects Terrestrial PhotographyMetering Reducing VibrationCare and Cleaning of the Optics Collimation of RefractorsCollimation of a Schmidt-Cassegrain Two 2 turnsCollimated telescope Should appear Symmetrical with Collimation of a Newtonian Aligning the Secondary MirrorBoth mirrors aligned with your eye looking into the focuser Night Time Star Collimating As a Series 1 # Page Page Appendix a Technical Specifications Appendix B Glossary of Terms Page Page Page Page Page Page Page Page Celestron Two Year Warranty
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