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Celestron Ambassador Series Manual

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13
While your telescope requires little maintenance, there are a few things to remember that will ensure your telescope
performs at its best.
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To keep the brass finish looking clean and bright, use brass polishing material. For the wood on the tripod, use
furniture polish. Follow the instructions given with the polishing materials.
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Occasionally, dust and/or moisture may build up on the objective lens or eyepiece of the telescope. Special care should
be taken when cleaning any instrument so as not to damage the optics.
If dust has built up on the optics, remove it with a brush (made of camel’s hair) or a can of pressurized air. Spray at an
angle to the glass surface for approximately two to four seconds. Then, use an optical cleaning solution and white tissue
paper to remove any remaining debris. Apply the solution to the tissue and then apply the tissue paper to the optics. Low
pressure strokes should go from the center of the lens (or mirror) to the outer portion. Do NOT rub in circles!
You can use a commercially made lens cleaner or mix your own. A good cleaning solution is isopropyl alcohol mixed
with distilled water. The solution should be 60% isopropyl alcohol and 40% distilled water. Or, liquid dish soap
diluted with water (a couple of drops per one quart of water) can be used.
To minimize the need to clean your telescope, replace all lens covers once you have finished using it. Since the cells
are NOT sealed, the covers should be placed over the openings when not in use. This will prevent contaminants from
entering the optical tube. Internal adjustments and cleaning should be done only by the Celestron repair department. If
your telescope is in need of internal cleaning, please call the factory for a return authorization number and price quote.
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Specifications Model # 21033 Model # 21034
Ambassador 50AZ Ambassador 80AZ
Optical Design Refractor Refractor
Aperture 50mm (2.0") 80mm (3.1")
Focal Length 360mm 800mm
Focal Ratio f/7.2 f/10.0
Optical Coatings Fully Coated Fully Coated
Finderscope n/a 6x30 Erect Image
Diagonal n/a Erect Image 45° 1.25"
Eyepieces H22mm (16x) Built-In P25mm 1.25" (32x)
Apparent FOV - w/standard eyepiece 25° 45°
Angular Field of View w/standard eyepiece 1.6° 1.4°
Linear FOV w/standard eyepiece – feet
@1000yds / meters @1000m
84/28 74/25
Near Focus -- feet/meters 50/15 100/31
Mount Altazimuth Altazimuth
Altitude Lock yes yes
Azimuth Locking Knob yes yes
Optical Tube Length 24" (61cm) 33" (84cm)
Telescope Weight – pounds/kilograms 12.5/5.7 28.5/12.9
Note: Specifications are subject to change without notice or obligation
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