Unistellar eVscope 2 User manual

User Guide
eVscope 2
The Universe
Awaits.

Who is
this user guide for ?
This guide is for all Unistellar
community members and users,
whether you are a beginner
or experienced, an astronomy
enthusiast or simply excited
to make new discoveries. This
guide will ensure you properly
set up your telescope and ob-
serve in good conditions, to get
the most out of your eVscope 2,
including beautiful images.
How
Is it organized ?
In this user guide, we will walk
you through every feature and
setting, step by step, to optimize
the use of your telescope. You
will learn how to get the best
experience possible every time
you observe the sky. You will also
learn about Unistellar’s mission,
as well as the science projects
you can participate in.

Summary
User Guide

Introduction : Unistellar’s Mission
Before you start : Everything you need to know about the eVscope 2
Download and install the Unistellar App....................................................................................P14
Your fi rst deep-space exploration.....................................................................................................P15
1. Set up and level the tripod
2. Install the eVscope 2 and power it on
3. Connect your eVscope 2 to the Unistellar App, using WiFi
4. Explore the night sky
5. Park your eVscope 2
Best practices for your observations..............................................................................................P19
Thermalization
Focus adjustment
Dark frames
Collimation
Get the most out ofyour eVscope 2...................................................................................................P24
Data................................................................................................................................................................................P28
Contribute actively to Science..............................................................................................................P30
Share your observations...............................................................................................................................P31
Storage and maintenance.........................................................................................................................P32
Troubleshooting.................................................................................................................................................P33
Let’s keep in touch...........................................................................................................................................P35
Need help ?
Glossary
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Introduction
Unistellar’s Mission
Unistellar was founded in 2017 by two former PhD students of the 2018
Physics Nobel Prize winner, a visionary industrial engineer, and a world-
famous Californian astronomer. All of them share one common
desire: to make astronomy more accessible and exciting for everyone
- and ultimately to bring the Universe closer.
Unistellar is disrupting the astronomy market with consumer telescopes
that are easy to use and powerful enough to allow you to experience
the beauty of space and make scientifi c discoveries. This fun and edu-
cational instrument gives access to thousands of targets, while tradi-
tional optical telescopes only allow for a few objects to be seen clear-
ly. Unistellar telescopes are the most portable, simplest and fastest to
operate, whether from an in-town balcony or the countryside.
Our telescopes provide an unparalleled user experience : they are very
easy to use, ready in a few minutes, controlled by your smartphone,
and able to automatically point at thousands of objects from our ca-
talog.
Unlike other telescopes, our community of users can easily upload
and share their data. This allows for new experiences such as crowd-
sourced pictures of the sky or the transmission of valuable scientifi c
data to professional astronomers.
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WARNING
!
User guide |7
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FORBIDDEN !
Never use an eVscope 2 to look at the Sun without an adapted fi lter !
Looking at or near the Sun will cause irreversible damage to your product.
Do not point the telescope at or near the Sun.
Children should always have adult supervision while observing.
WARNING !
Never charge the eVscope 2 if the temperature is under 10° Celsius.
It could cause irreversible damage to the eVscope 2’s battery.
Always charge it between 10°C and 40°C (40°F and 104°F).
WARNING !
Never let the eVscope 2 with the battery plugged in without using it for
more than a month. It could cause irreversible damage to the eVscope 2’s
battery. Always unplug the battery for long storage.
!
!
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8mm
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BOX CONTENT
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eVscope 2
Bahtinov mask (located in the cap cover)
Tripod + cylindrical black foam to keep in case of return
Power supply with adaptable plugs (EU, USA, UK, JP)*
Quick start guide
User guide
Accessories box with tools
Tripod Tool 1 (Socket wrench 8mm) / Tripod Tool 2 (Allen Key M5.5) Tripod Tool 3 (Allen Key M4) /
Telescope Tool 1 (Torx Key T20) / Telescope Tool 2 (Allen Key M3)
Removable cover + 2 spare screws for the tripod
Backpack
Tube Dust cap & eyepiece cap
*Except for Australia, New Zealand, Hong Kong & Singapore (power cable only)
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The eVscope 2
What is the eVscope 2 ?
User-friendly, smart and autonomous, the eVscope 2 is the perfect grab-and-go
telescope. Safely and easily transport the eVscope 2 and tripod in its backpack.
What makes the eVscope 2 user-friendly?
The Enhanced Vision (patented technology) and the Autonomous Field Detection.
Learn more about these features in section 4 - Get the most out of your eVscope 2.
When you receive your package and open it up, you will see a cylindrical black foam
with a red tape placed in between the mirror mount of your Unistellar telescope and
the onboard computer. The easiest way to do so is by pushing it out from the back and it
will slide on the side.
eVscope’s characteristics:
Aperture 114 mm (4.5 inches)
Computerized Yes
Resolving power 1.33 arcseconds
Focal Lenght 450 mm (17.7 inches)
Focal Ratio f/3.9
Mount Alt-Azimutale
Optical Design Newtonian
Sensor IMX347 low read noise 1 e-
(trademark of Sony®)
Sensor fi eld of view 0.75 x 0.56°
Weight 9 kg (19.8 lbs)
Mirror refl ectivity 92-96%
Max magnitude 16 (up to 18 in best conditions)
Eyepiece Nikon "Viewfi nder"
Measurements 65cm tall and 23cm wide
(25.5-inches tall and
9-inches wide)
Warning: the eVscope 2 cannot be mounted
on any other tripod
Before you start:
Everything you need to know about the eVscope 2
!
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The eyepiece
What is the eVscope 2 eyepiece ?
The technology OLED display has extremely high-contrast with True black, with an
optical setup designed to stream the sensor's view. The result: mind-blowing visual
quality for your observations of the dark sky.
How to use it?
You can adjust the dioptry and sharpen the image based on your eyesight, especially
if you wear glasses or contact lenses by rotating the side knob counterclockwise
fully, followed by 3 to 4 clockwise turns until perfectly adjusted to your sight.
The fi eld of view cannot be changed, even with a Barlow lens.
The battery
The eVscope 2 comes fully charged and ready to use.
What is the eVscope 2 battery?
Battery’s characteristics: Lithium-ion (6 x 18650, 15 Ah) - lasts up to 9 hours.
A rechargeable Lithium-ion internal battery is built into your eVscope 2. The battery can be
replaced in the event of malfunction or permanent damage.
How to charge the battery ?
Use the enclosed USB-C charging cable and power plug adapters to plug your eVscope
2 into a power outlet. A power bank can be used to charge your eVscope 2 as well (we
recommend a USB 5V).
For the most effi cient charge of the battery, the maximum current used by the eVscope 2 is
2.4 Amps. For the charge range we recommend >2A. 1A will also work but the charging time
will take longer.
What does the blue flashing light indicate?
While charging, the LED located on the power button fl ashes blue. As the battery is charging,
the number of fl ashes will decrease. When the battery is fully charged, the LED is steady
blue. Your Unistellar App also indicates battery levels.
Avoid “fast charging” technology (9V, 12V); it may not charge the battery (and charger may
not be detected).
Partial battery discharges are healthier for your device than long discharges: high
discharge rates contribute to damage and strain on Lithium-ion batteries.
What if my power supply is damaged ?
If damaged, the charger is a standard one, you can use a USB-C USB cable. Use a good
quality power supply.
For long term storage, we recommend charging your battery to 70% and
charging it at least every six months. Keep your telescope disconnected, and
away from heat and moisture. Recharge your eVscope 2 fully before your next
observation.

Can I use my telescope while charging ?
Yes. The charging time may vary from 6.5 hours
on OFF mode to 8 hours while operating.
Warning: do not charge the battery if the
temperature is below 10°C (50°F).
Cold environments can reduce
the available battery capacity and
shorten duration of use. While
the eVscope 2 can function in
temperatures down to -20°C (-4°F),
we recommend you avoid using
your eVscope 2 below 0�°C (32°F) or
above 40°C (104°F) to enhance the
battery life.
Did You
Know ?
The tripod
Made for deep sky observations, it has a bubble
level at the top of one of three multi-angle leg
locks, near where the eVscope 2 is secured. Make
sure your tripod is accurately leveled or your
observations will be slightly inaccurate.
IMPORTANT: make sure to fully tighten the screws
on your tripod, but not overly-tighten them which
can strip the screws and make the tripod unstable.
Additionally, ensure the legs are properly locked
before transfering your eVscope 2 to the tripod.
Warning: the tripod cannot be used for any
other purpose than holding your eVscope 2.
Tripod’s characteristics :
Measurements : 59 cm x 13 cm (23,2 inches x 5,11
inches) - 125 cm of heights max & 98 cm wide open
(49.2 inches x 38.5 inches)
Weight : 2kg (4.4 lbs)
The LED
Where is the LED located on the eVscope 2 ?
The LED is on the Power / ON button.
What does each color mean?
Purple: eVscope 2 software ON or OFF (for a few
seconds)
Red: eVscope 2 ON, ready to use, operational
Purple and blinking 5 times: eVscope 2 OFF
with not enough charge to turn ON (charge it)
Blue and blinking: eVscope 2 OFF and charging
(will blink from 6 times: fully discharged to
steady blue: fully charged)
Yellow and blinking: eVscope 2 updates in
progress
Green and blinking : transfer in progress
Orange: data transfer has failed
White: an error has happened, reboot your eVscope.
We choose the color red to power
on the device so it won’t dazzle you
at night.
Did You
Know ?
!
!
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The backpack
What is the eVscope 2 Backpack?
The eVscope 2 backpack is constructed with tough,
reinforced fabric and padded with high-density
foam to protect your eVscope 2.
Warning : The backpack is not waterproof.
Backpack’s characteristics :
• Made out of robust materials as similar to leading
camera or computer bags
• Built-in foam inserts match the shape of your
telescope
• Internal strap securely fastens the instrument
during transport
• Removable rain-shield (protects against rain and
humidity) located underneath the backpack.
• Padded adjustable shoulder straps & hip-belt help
to distribute the load weight
• 5 small internal pockets: 2 zipped, 2 to hold the
telescope cap and eyepiece cover
• Ventilated back-panel
• 2 large external and 1 hip-belt zipped pockets
Measurements : 72 cm x 22.5 cm x 29 cm (H x W x D) - 28.3 inches x 8.6 inches x 11.4 inches
Weight: 2 kg (4.5 lbs.)
!

Download & install
the Unistellar App
The App is your portal to the Unistellar experience and the community of users.
You will be able to:
- Discover recommended objects for you to explore with your eVscope 2
- Share your observations with other members of the community, and discover theirs
- Stay informed of all the latest space-related news and scientifi c discoveries
- Contribute to the scientifi c discoveries yourself by taking part in our observation missions
ACTIVATE YOUR GPS BEFORE DOWNLOADING THE APP.
Where to fi nd the Unistellar App ?
On the Google® Play Store and the Apple® App Store (on
smartphones or tablets) under the name Unistellar. The App
enables you to wirelessly control your eVscope 2 with WiFi.
Minimum requirements to download our App :
• Android 6 or iOS 12 operating system
• Touch screen
• WiFi
• 140Mo of available memory
The App is not supported on FireOS devices. If you can’t download it on your smartphone, check
the operating system of your device. Update the App when a new version is available in the
the Apple® App Store (iPhone/iPad) or Google® Play Store (Android)
If you experience difficulties downloading, installing or using the App, please contact
our support platform at help.unistellar.com.
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Your fi rst deep-space exploration
Follow this routine every time you set up your eVscope 2 to avoid
any potential damage as breakage due to mishandling is not
covered by warranty.
Scan this QR code to be redirected to a video on how to set up your eVscope 2
Set up and level the tripod
Warning : The tripod’s legs screws could have loosened during shipment or regular use.
Please check that all screws are tightened. If not, tighten them with the provided tool in the
accessories box.
Open the legs of the tripod
and adjust the height.
Always setup your tripod
on a solid surface.
Find the bubble level at the
top of one of the tripod’s
three multi-angle leg locks
(at the crown of the tripod).
Adjust the legs to put the
bubble level within the black
circle.
Check that the tripod legs
are properly secured.
Loosen the 2 tripod
screws at the crown of
the tripod.
IMPORTANT : ALIGN AND RE-CENTER THE BUBBLE LEVEL EVERY TIME YOU MOVE
YOUR EVSCOPE 2 TO ENSURE YOUR OBSERVATIONS ARE PRECISE AND ACCURATE.
Tighten the tripod screws with the tools included in the box to avoid dropping the
eVscope 2 as they can loosen over time.
1
2
!

Install the eVscope 2 and
power it on
A- Pick up your eVscope 2, and cradle the
tube and base in your arms and hands.
Ensure the base of the eVscope 2 is fully
supported, to avoid dropping the telescope
during the installation process.
B- Install your eVscope 2 vertically on the
tripod.
Ensure that the base is properly inserted
into the crown of the tripod and fi ts in
perfectly. It should be stable, not loose
nor wiggly.
D- Start the eVscope 2 by pressing the ON
button for 2 seconds. The LED is fi rst purple
then red.
(You might not see the button light if you turn
on your eVscope 2 in daylight because of its
low intensity).
E - Remove the cap covers on both the
eVscope 2 tube and eyepiece.
C- Tighten the screws at the crown of
the tripod to secure your eVscope 2. Be
careful not to tighten too hard as it may
damage the thread.
PRESS
ON
2 sec
2
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Did You
Know ?
Connect your eVscope 2 to the Unistellar App, using WiFi
Launch the Unistellar App, and authorize the App to access your WiFi settings (or acti-
vate your WiFi on your device). The App will automatically detect your nearby eVscope
2.
Select your eVscope 2 from the list of network
You are connected to your eVscope 2
If the App fails to detect your eVscope 2, check
section 9 Troubleshooting.
eVscope2-xxxxxx
The eVscope 2 creates its own WiFi
network ; it doesn't use your home/
internet WiFi. No internet connection
is required to operate your eVscope 2.
Network found :
NO INTERNET
CONNECTION
3

Explore the night sky
For best quality observations, the sky needs to be dark, with no-
to-limited cloud cover, and multiple bright stars should be visible.
To move the telescope press and drag the dot of the joystick
towards the arrows with your fi nger to point it in the direction you
want. or, pinch-and-pull on your screen to zoom in on the image.
Enjoy the live view ! You should be able to see stars through the
eyepiece and on your screen.
If what you see seems blurry, proceed with a fast focus (without
using the Bahtinov mask) - To learn how to get a high precision
focus with the Bahtinov, check section 3 - Best practices for
your observations - Focus adjustment.
Press the Autonomous Field Detection
(AFD) button and the eVscope 2 will instantly
recognize objects in its fi eld of view.
Choose the fi rst recommended object in the
catalog of the App and hit the Go to button, it will
take you directly to the object.
Once the telescope has reached its target,
switch to Enhanced Vision mode to start
revealing the details and colors of distant
deep-sky objects. The longer you leave the
Enhanced Vision active on an object, the
more details will appear.
On your smartphone or
tablet screen, adjust the
focus of the eVscope 2 by
turning the focus wheel
located at the base of the
eVscope 2 until the image
is clear.
In the eyepiece,
adjust the focus of
the eyepiece’s lens.
Turn the control knob
located next to the lens
until you fi nd the best
setting for your vision.
If you want to look at the Moon and other closer and brighter objects such as planets, please
see section Observation of the Moon & planets of this guide to get started.
4
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Park your eVscope 2
After each observation, use the Park function of your eVscope 2, accessible from the User
> My eVscope menu. This will automatically move it to the zenith position and turn it off .
If your eVscope 2 doesn’t go perfectly into a vertical position when parked, it is normal.
Replace your telescope cover and eyepiece cover before storing your eVscope 2 in its
backpack.
If you run into challenges during this routine, please consult the troubleshooting section
or visit help.unistellar.com.
5
Best practices for
your observations
In this section we willexplain a fewrecommended manipulations for anyfuture observations.
Thermalization
What is thermalization?
Thermalization refers to the process of equalizing the temperature between the
components of your eVscope 2 and its external environment.
Why should I thermalize my eVscope 2 ?
The eVscope 2 performance will be optimized if the mirror reaches thermal balance.
This step is very important to ensure that the mirror and the tube will not fl ex during use,
resulting in potential changes in focus and image quality. Moreover, much like a hot road in
the sun, diff erences in temperature can create a blur eff ect due to air displacement - this
could aff ect the quality of your observations.
How to thermalize my eVscope 2?
If there is a diff erence in temperature between the outside and the room your eVscope
2 is stored in, turn on your eVscope 2 and put it outside about 15-30 minutes prior to your
observation, depending on the temperature diff erence.
Focus adjustment
What is the focus?
The focus refers to the distance between the mirror and the sensor, causing the light rays
from the object to properly converge. If the rays converge after or before the sensor, the
image will be blurry.
How often should I adjust the focus?
Adjust the focus before any observation including after leaving the eVscope 2 outside to
thermalize. You might have to re-adjust your focus during long observation nights if the
temperature has dropped dramatically or if other parameters of your observation have
changed.
3

How to get a high-precision focus using the
Bahtinov mask ?
it is usually too bright on default
"auto" settings. Adjust those set-
tings manually by toggling "auto"
o ff .
DO NOT ACTIVATE THE ENHANCED VISION MODE WHEN ADJUSTING THE FOCUS
Slowly rotate the focusing wheel until the central line is centered in the X.
Go to the fi rst recommended star in the catalog as it will be the brightest available to you.
Separate the Bahtinov mask from the cap cover. Place it on top of the eVscope 2 tube, and
turn gently as needed to fi t it onto the tube.
This will create a specifi c pattern forming an X, visible in the eyepiece and on your screen.
Zoom in using pinch-and-pull on your device to clearly see the X.
Scan this QR code to be redirected to our video
on how to focus with the Bahtinov mask
The Bahtinov mask consists of three grills
at three diff erent angles. It will create
diff raction spikes for an accurate focus.
Did You
Know ?
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