6
AR DOUBLET SERIES
Welcome to our AR Doublet Series
Designed to deliver crystal clear imagery full of contrast, the telescopes in our AR
Doublet Series will reveal the universe’s breathtaking sights with rich detail. Available
in three apertures ranging from a highly portable 102 mm to a far-reaching 152mm,
these achromatic refractors produce stunning views of countless celestial treasures like
the Moon’s chiseled craters, Saturn’s elegant rings or the churning spiral of the face-on
Pinwheel Galaxy. To connect you with the cosmos, the doublet telescopes in this series
use a pairing of a crown glass lens and a flint glass lens separated by a cushion of air to
minimize chromatic aberrations. To further guarantee high-quality imagery, all optical
glass is fully multi-coated. Each model also offers a three-point collimation cell that
allows for pinpoint adjustments of the objective lens for precision performance. Your AR
Doublet Series telescope offers all of these benefits and more. This set-up manual and
the accompanying materials will guide you through a basic assembly process that will
have you at the eyepiece and under the stars in no time.
SUN WARNING
DO NOT use this telescope or any accompanying finder scope to look at or near the Sun!
Even momentary visual contact with the Sun’s light rays can instantly cause irreversible
damage to your eye(s). Eye damage can be painless, so there is no warning to the
observer that damage has occurred until it is too late.
Take extra care when using the telescope or a finder scope during daylight hours, and
do not point either at or near the Sun. Do not look through either when you are moving
the instruments during the daytime. Never allow anyone to use the telescope or a finder
scope during the daytime without warning them of the hazards of aiming either at or
near the Sun. Make sure that they are adequately trained on the use of these instruments
before allowing them to start observing. Children should always have informed and
trained adult supervision while observing.
PROPER CARE WARNING
Your telescope is a precision optical device and keeping the optics free of dust and dirt
is crucial for optimal performance. However, the use of improper cleaning techniques,
tools and/or solutions can cause irreparable damage to your telescope. In terms of
solutions, use distilled water and/or an optical glass cleaner that can be found at most
camera stores. Only use pure cotton swabs/balls or white, unscented, lotion-free tissues
for wiping down optics after you have removed as many particles as possible with forced
air or a photographic-grade camel hair brush. DO NOT use optical lens cleaning tissues
as many contain fiberglass particles that can be abrasive.
UNPACKING and MOVING
Please Note: We recommend that you keep the original shipping box and packing
materials if possible, in case your scope should ever need to be returned for service or
warranty purposes. When the box is opened for the first time, you will find that all parts
are packaged in plastic bags and the telescope’s tube is wrapped in tissue. To begin
assembly, slowly remove the optical tube. All models will come with their cradle rings
attached, which makes for easy removal. Rarely, the cradle could have come open during
packing or shipping, so it is important to check the latches and then do a quick, small lift
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