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Orion ShortTube
Optical Tube Assemblies
A N E M P L O Y E E - O W N E D C O M P A N Y
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INSTRUCTION MANUAL
#9948 ST80 OTA only
#9947 ST80-A (Astronomical)
#9946 ST80-T (Terrestrial)
#9948
#9947
#9946
80 Refractor
™
Corporate Offices: 89 Hangar Way, Watsonville CA 95076 - USA
Toll Free USA & Canada: (800) 447-1001
International: +1(831) 763-7000
Customer Support: support@telescope.com
IN 651 8/20
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Table of Contents
Related Manuals for ORION TELESCOPES & BINOCULARS ShortTube 80
Summary of Contents for ORION TELESCOPES & BINOCULARS ShortTube 80
- Page 1 INSTRUCTION MANUAL Orion ShortTube 80 Refractor ™ Optical Tube Assemblies #9948 ST80 OTA only #9947 ST80-A (Astronomical) #9946 ST80-T (Terrestrial) #9948 #9947 #9946 Corporate Offices: 89 Hangar Way, Watsonville CA 95076 - USA Toll Free USA & Canada: (800) 447-1001 International: +1(831) 763-7000 Customer Support: support@telescope.com A N E M P L O Y E E - O W N E D C O M P A N Y...
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Page 2: General Information
Loosen the two thumbscrews and insert III. ShortTube 80-A (#9947) ....3 the accessory’s barrel into the drawtube collar until it stops, then secure it in place by re-tightening the thumbscrews. -
Page 3: The Shorttube 80 Ota (#9948)
Care and Maintenance Then insert the 1.25" nosepiece of the guide camera into the If you give your ShortTube 80 reasonable care, it will last a life- extension tube and secure it with the thumbscrew(s). time. Store it in a clean, dry, dust-free place, safe from rapid changes in temperature and humidity. - Page 4 Tube rings Star diagonal Dovetail mounting bar Tube ring clamping knobs Figure 4. The ShortTube 80-A is outfitted for astronomical viewing. Installing the Finder Scope Image Orientation The ShortTube 80-A comes with an 8x40 achromatic crosshair The image in the telescope will appear reversed left to right. This finder scope (see Figure 4).
- Page 5 Figure 5. Inserting the finder scope into the finder scope bracket. View through finder scope Figure 7. Images through the ShortTube 80-A with its star diagonal in place will be reversed from left-to-right. Images through the finder scope will appear upside-down and backwards (rotated 180°).
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Page 6: Shorttube 80-T (#9946)
Dovetail mounting bar Figure 8. With its correct-image diagonal and correct-image finder scope, the ShortTube 80-T is outfitted nicely for terrestrial viewing. IV. ShortTube 80-T (#9946) the dovetail shoe on the optical tube with the knurled thumb- screw on the dovetail shoe. - Page 7 Aligning the Finder Scope Specifications The finder scope is so named because it makes it easier to Objective lens: Achromatic doublet, air-spaced find the subject you want to observe in the main telescope. Objective lens coatings: Multi-coated That’s because the finder scope has a much wider field of Aperture: 80mm view than that of the main telescope.
- Page 8 One-Year Limited Warranty This Orion product is warranted against defects in materials or workmanship for a period of one year from the date of purchase. This warranty is for the benefit of the original retail purchaser only. During this war- ranty period Orion Telescopes &...
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