Explore One 88-50ERTK User manual

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
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N
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E
T
E
C
H
N
O
L
O
G
Y
M
A
T
H
E
M
A
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I
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S
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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

The first convex lens
with smaller curve
face outward
Place the 1/4
Tripod Locking Nut
Slide the Eyepiece Locking Cap
on the end of the Barrel Focuser
Place Lens and Focal Ring in
the Barrel Focuser (Fig. 2)
Slide on the
Barrel Locking Cap
Place convex lens with smaller
curve facing outwards (Fig. 1)
Pop on the
Bottom Locking Cap
Place the top half of
the Barrel Focuser
Slide on the Dew Shield
to complete the setup
Dew
Shield
Objective
Lens
Finder Barrel
Focuser
Barrel
Locking
Cap
Bottom
Locking
Cap
1/4 Tripod
Locking
Nut
Focal
Point
Eyepiece
Locking
Cap
50MM Refractor STEM Telescope Kit
The image
will appear
upside down
1
5
2
6
3
7
4
8
Assembly
Thicker eyepiece “A” on the inside, convex facing out.
Thinner eyepiece “B” lens on the outside, flat side facing out.
The focal ring is very
delicate, do not touch
the center.
(Fig. 2)
(Fig. 1)