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FOR FIRST TIME TELESCOPE USERS
This manual will provide you with a better understanding of your new telescope —including its features, hardware and capabilities.
As with many things, the better you understand the workings of the equipment, the more enjoyment you will get from it.
This is particularly true of telescopes. So take a few moments now to become thoroughly acquainted with your new telescope.
Mastering an astronomical telescope is a key to the success in astronomical observation.
Step 1
Proper assembly of the telescope
'■.
,'
Pay particular attention to the following when assembling the telescope.
Make sure extension clamps that fix the tripod legs and a fixing knob for the mount on the underside of the tripod head are firmly
fastened. They provide the stability which is so important to quality observation.
Step 2 Installation of an eyepiece
©The magnification of your telescope is determined by the
eyepiece you use. It can be computed with the following
formula.
Magnification =
Focal Length of Objective (mm)
Focal Length of Eyepiece (mm)
©Read the writing on the eyepiece, and you may find characters
such as "K20mm", "HMl2.5mm" or "LV5mm". The first letter
represents the type of eyepiece design, the number that follows
represents the focal length of the eyepiece. As the number gets
smaller, the magnification power of the eyepiece becomes
greater, thereby allowing the viewer to observe close-up detail.
©Eyepieces are classified into three sizes of barrel diameter,
24.5mm, 31 7mm and 50.8mm.
@To set a 24.5mm, 31.7mm or 50.8mm eyepiece, insert it in a
proper 24.5mm, 31.7mm or 50.8mm eyepiece adapter and
securely tighten the eyepiece setscrew.
Step 3 First operation of the telescope
©Unfasten the R. A. and Decl. clamps and you can move the
optical tube in a full range of motion.
CAUTION : DO NOT FORCE THE OPTICAL TUBE TO MOVE
WHEN THE R. A. CLAMP OR DECL. CLAMP IS
FULLY
ENGAGED.
THIS
MAY
DAMAGE
PRECISION PARTS OF THE MOUNT.
VixenAmerica.com
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