Orion Observer II 70mm Altazimuth Refractor, 10275 Instruction Manual
INSTRUCTION MANUAL
Orion® Observer™ II 70mm
Altazimuth Refractor
#10275
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Orion-
Providing Exceptional Consumer Optical Products Since 1975
All Rights Reserved. No part of this product instruction or any of its contents may be reproduced, copied,
modified or adapted, without the prior written consent of Orion Telescopes & Binoculars.
®
Customer Support:
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89 Hangar Way, Watsonville CA 95076 – USA
Copyright © 2017 Orion Telescopes & Binoculars
IN 580 06/17
Congratulations on your purchase of an Orion telescope. Your new Observer II 70mm Altazimuth
Refractor is a terrific starter instrument for exploring the exotic wonders of the night sky. Designed to be
compact and easy to use, it will provide many hours of enjoyment for the whole family.
If you have never owned a telescope before, we would like to welcome you to amateur astronomy. Take
some time to familiarize yourself with the night sky. Learn to recognize the patterns of stars in the major
constellations. With a little practice, a little patience, and a reasonably dark sky away from city lights,
you’ll find your telescope to be a never-ending source of wonder, exploration, and relaxation.
These instructions will help you set up, properly use, and care for your telescope. Please read them over
thoroughly before getting started.
Table of Contents
1. Parts List .................................2
2. Assembly .................................4
3. Preparing the Telescope for Operation ..........5
4. Astronomical Observing. . . . . . . . . . . . . . . . . . . . . .6
5. Worthwhile Optional Accessories ..............9
6. Telescope Care and Maintenance ..............9
7. Specifications ............................10
1. Parts List
Part Qty
A – Tripod leg 3
B – Yoke mount 1
C – Hex head tripod mounting bolt (3"),
with 5/8" washer and wing nut 3
D – Leg lock thumbscrews 3
E – Accessory tray 1
F – Screw with 3/8" washer and wingnut 3
G – Optical tube 1
H – Yoke knob 2
I – Altitude micro-motion rod 1
J – Micro-motion rod anchor screw 1
K – Red dot finder scope 1
L – Mirror star diagonal 1
M – 25mm Kellner eyepiece 1
N – 10mm Kellner eyepiece 1
O – Screwdriver tool 1
P – Dust cover 1
WARNING: Never look directly at the Sun through
your telescope—even for an instant—without a
professionally made solar filter that completely
covers the front of the instrument, or permanent
eye damage could result. Young children should
use this telescope only with adult supervision.
2
G
B
P
A
E
N
L
K
Figure 1. The parts of the Observer II 70 Altaz telescope.
M
C
H
F
O
D
I
J
3
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