Correct Collimation - Meade 114EQ-ASTR Instruction Manual

Meade114EQASTR 3/28/07 9:33 AM
should not be considered
reason to clean the surface.
16
When lens or mirror
cleaning does become
necessary, use a camel's hair
brush or compressed air
gently to remove dust. If the
telescope's dust cover is
replaced after each observing
session, cleaning of the optics
will rarely be required.
• Fingerprints and organic
materials on the lens or mirror may
be removed with a solution of 3 parts
distilled water to 1 part isopropyl
alcohol. You may also add 1 drop of
biodegradable dishwashing soap per
pint of solution. Use soft, white facial
tissues and make short, gentle
strokes. Change tissues often.
CAUTION: Do not use scented
or lotioned tissues or damage
could result to the optics. DO NOT
use a commercial photographic
lens cleaner.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the Sun. Do not look through the telescope as it is moving.
Page 18
Monture
Miroir Diagonal
Diagonale
Image Focalisée
The Newtonian Reflecting Telescope
COLLIMATION
(ALIGNMENT) OF
OPTICS
All Polaris 114 EQ-AR
telescopes are
optically aligned at the
factory prior to
shipment. It is unlikely
that you will need to
align, or collimate, the
optics after receipt of
the instrument.
However, if the telescope received unusually
rough handling in shipment, it is possible
that the optics must be re-aligned for best
optical performance. In any case this
Fig. 10
alignment procedure is simple, and
requires only a few minutes the very first
time the telescope is used. Take the time
to familiarize yourself with the following
collimation procedure, so That you will
Miroir Primaire
recognize a properly collimated instrument
and can adjust the collimation yourself,
Vis D'inclinaison
if necessary.
du Miroir Primaire
A. CORRECT COLLIMATION
The properly collimated (aligned) mirror
Fig. 11
system in the Polaris 114 EQ-AR assures
the sharpest images possible. This occurs
when the primary mirror and diagonal
mirror are tilted so that the focused image
falls directly through the center of the
focuser drawtube. These mirror tilt
adjustments are made with the diagonal
2
assembly and the primary mirror cell (Fig.
10) and will be discussed later.
To inspect the view of the mirror
Diagonal Assembly
collimation, look down the focuser
drawtube with the eyepiece removed. The
edge of the focuser drawtube (1, Fig.13),
will frame the reflections of the primary
mirror with the 3 mirror clips (2, Fig. 13)