Manual

Assembling Your Telescope
Aligning the Finderscope
Focusing
Using the optional Barlow Lens
Using the Tension Control Handle
Pointing the Dobsonian
Calculating the Magnication (power)
Calculating the Field of View
Calculating the Exit Pupil
Operating Your Telescope
Parts List
Base Assembly
Optical Tube Assembly
Proper Care for Your Telescope
3
6
3
4
5
Collimation
Cleaning Your Telescope
10
11
6
6
6
7
7
8
8
8
Sky Conditions
Selecting an Observing Site
Choosing the Best Time to Observe
Cooling the Telescope
Adopting Your Eyes
Observing the Sky
9
9
9
9
9
9
10
TABLE OF CONTENTS
B
efore you begin
C
aution!
This instruction manual is applicable to all the models listed on the cover. Read the entire
manual carefully before beginning. Your telescope should be assembled during daylight
hours. Choose a large, open area to work to allow room for all parts to be unpacked.
NEVER USE YOUR TELESCOPE TO LOOK DIRECTLY AT THE SUN. PERMANENT
EYE DAMAGE WILL RESULT. USE A PROPER SOLAR FILTER FOR VIEWING THE
SUN. WHEN OBSERVING THE SUN, PLACE A DUST CAP OVER YOUR
FINDERSCOPE TO PROTECT IT FROM EXPOSURE. NEVER USE AN
EYEPIECE-TYPE SOLAR FILTER AND NEVER USE YOUR TELESCOPE TO
PROJECT SUNLIGHT ONTO ANOTHER SURFACE, THE INTERNAL HEAT BUILD-UP
WILL DAMAGE THE TELESCOPE OPTICAL ELEMENTS.