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as many contain fiberglass particles that can be abrasive.
FOCUSING YOUR FINDER SCOPE
(Please note: This section does not apply to our Non-Illuminated Straight Finder Scope,
which does not have a focus feature.) Our illuminated finder scopes allow for focus
adjustments of both the objective lens and the eyepiece.
On the Illuminated Straight Finder Scope, your initial focus adjustments can be made
before you mount the finder scope to your telescope. While holding the finder scope in
your hand, loosen the focus lock ring on the eyepiece by holding onto it while you turn the
eyepiece focus adjuster counterclockwise. Once the adjuster is moving freely, let go of
the lock ring and aim the finder scope at a blank wall. Turn the focus adjuster left or right
until you see the finder scope crosshairs reach perfect sharpness. Tighten the lock ring
down to hold the focus position
Now, loosen the objective lens focus adjuster in the same way. Aim the finder scope at
a very distant, stationary object. Turn the objective lens focuser left or right until you see
the object and the crosshairs reach perfect sharpness. Tighten the lock ring down to hold
the focus position.
Once your finder scope is mounted on your telescope, repeat the process on the Moon
or a bright star and make adjustments as necessary.
MOUNTING YOUR FINDER SCOPE
The first step in mounting your finder scope to your telescope is to slide it into the finder
scope bracket, which has two rings to hold your finder scope in place. Each of these rings
has three adjusting screws.
If your finder scope is not already installed in the bracket, loosen each of the adjusting
screws until you have opened up the full inside diameter of the rings. Slide the finder
scope into place and gently tighten all of the adjusting screws until your finder scope is
secure.
The bracket has a dovetail base that slides easily into the mounting assembly that
is already attached to the optical tube assembly (OTA). Once it is installed in the base,
secure it by tightening the two large, heavy-duty plastic screws.
Please note: On our 102mm AR Doublet Achromatic Refractor, you will need to install
the finder scope before you put on the cradle ring assembly. On all of our other telescope
models, the finder scope can be installed after the cradle rings are in position.
ALIGNING YOUR FINDERSCOPE
Once your finder scope is mounted on your telescope, it is time to align the finder scope
so that it and the telescope will be centered on the same spot in the sky when it is time to
use it. Although the process can be tedious, it is important to follow through to avoid later
frustrations that can ruin an observing session.
FINDER SCOPES
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