
Please retain the packaging and instructions for further reference, as they contain important information.
INSTRUCTIONS & OWNER’S MANUAL

INTRODUCTION:
Congratulations on your purchase of the precision crafted AT50 COLEMAN
telescope. With the proper care and handling of your telescope, you will enjoy
years of viewing pleasure.
As an astronomical device, the AT50 telescope has been designed for both a
beginner and advanced star gazer. It provides views of the moon and planets,
as well as dozens of galaxies, star clusters, and nebulae.
As a terrestrial (land) telescope, the AT50 brings the world’s natural wonders
closer. It delivers superb scenic views and allows for observation of animals
and landscapes from a distance. To obtain the best performance from your
telescope, please carefully read this manual.
WARNING! DO NOT VIEW THE SUN THROUGH A TELESCOPE!
SERIOUS INJURY TO THE EYES MAY OCCUR
For use by an adult or under the supervision of an adult

PARTS LIST FOR AT50 Telescope:
WARNING!
CHOKING HAZARD
Small parts. Not suitable for
!
Specifications, colors, packaging, and/or contents of this manual are subject to change without notice.
children under 3 years.
3

ASSEMBLY:
1) Carefully remove all parts from the cardboard cartons and lay them on a table, floor or
other flat surface in order to take an inventory of all the pieces. Keep your box for storage
or in case you ever need to ship your telescope.
2) Remove the tripod (1) from the box. Set the tripod on a level surface and fully spread
the legs.
3) Remove the telescope optical tube (7) from the box.
4) Position the telescope optical tube (7) on top of the tripod head, aligning it to the fixing
screw (9). Connect the telescope optical tube to the tripod and secure it in place by
tightening the fixing screw. DO NOT OVERTIGHTEN.
5) Remove the diagonal mirror (4) from the box. Insert it
into the focusing tube (3). Secure
the diagonal mirror in place by tightening the set screw. (See Illustration 1)
(Illustration 1)
6) Remove either the H12.5 or SR4 eyepiece (5) from its protective case. Insert the
eyepiece into the diagonal mirror. Secure the eyepiece in place by tightening the set screw.
(See Illustration 2)
7) Remove the accessory tray (12) from the box. Attach it to the tripod’s support brackets with
the included screw. The accessory tray may be used to hold the eyepieces and accessories
not in use at the time you are viewing an object.
(Illustration 2)
4