
50MM Refractor
STEM Telescope Kit
Instruction Manual
SUN HAZARD
— Never look directly at the sun
with this device.
WARNING:
The lens contains lead that may be harmful.
Wash hands after touching.
WARNING:
CHOKING HAZARD
— Small parts.
Not for children under 3 years.
WARNING:
S
C
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N
C
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T
E
C
H
N
O
L
O
G
Y
M
A
T
H
E
M
A
T
I
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S
E
N
G
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R
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Assembly Steps
1. Find all parts and accessories. (16 parts)
2. Eyepiece assembly (2 set of 3 eyepiece lens set,
reticle adjusting ring, eyepiece assembly locking
cap)
3. OTA assembly (2 sets of 2 objective lens set,
lens separation ring, assemble to OTA slot.)
4. Finishing. (1/4 nut (screw), assemble eyepiece
set on to the back of the OTA, close the two piece
of the OTA, assemble dew shield, assemble barrel
locking cap, bottom locking cap)
© 2018 EXPLORE ONE
1010 S 48th Street, Springdale, AR 72762
exploreone.com | 866.252.3811
All rights reserved. Made in China.
CONFORMS TO THE SAFETY
REQUIREMENTS OF ASTM F963
Troubleshooting Guide:
Problem Solution
No picture Remove dust protection cap and sun-
shield from the objective opening.
Blurred picture Adjust focus using focus barrel.
No focus possible Wait for temperature to balance out.
Bad quality Never observe through a glass
surface such as a window.
Objects to view
Moon
Pleiades
Star Cluster
Milky Way
Star Clouds