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Unistellar Smart Solar Filter

Original price $249.00 - Original price $249.00
Original price
$249.00 - $249.00
Current price $249.00
In stock

Ships To: United States & Canada 🇺🇸 🇨🇦

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Ships In: 1-3 Business Days

Estimated Delivery Time: 3-7 Business Days

Shipping & Returns

We offer Free Shipping across the United States (Lower 48 States) on most orders over $100 USD.

Shipping fees will apply on most orders shipping across Canada, with some exceptions.

We also offer a 30 Day Return Policy on most of the products that we carry. Some limitations may apply.

For full details on our Shipping & Returns Policy, please click here.


The vast majority of products that we sell, with a few exceptions, are covered under Warranty.

To view the Warranty details for each brand that we sell, including products that do not qualify for Warranty, please visit here.

Turn the Unistellar eQuinox, eQuinox 2, or eVscope 2 into a Solar Telescope with this Smart Solar Filter

Unlock the secrets of our nearest star and uncover the awe-inspiring mysteries of solar activity with the Unistellar Smart Solar Filter – the perfect tool for safe and effortless solar observations in under 2 minutes with your Unistellar telescope.

Unlock the secrets of the Sun

Experience the beauty of the Sun’s ever-changing activity and observe its striking sunspots and faculae – temporary phenomena on the Sun’s photosphere, created by intense magnetic field flux.

With the Unistellar Smart Solar Filter and Solar mode in the Unistellar App, you can easily track the Sun and monitor the fluctuating Sunspot number, which ranges in size from 16 km to 160,000 km and can last from a few days to several months.

Get ready to discover the stunning features of the Sun with the Unistellar Smart Solar Filter.

Seamless All-in-One Solar experience

Observing the Sun has never been easier, faster or safer. Unistellar's cutting-edge Solar Experience feature includes a smart GoTo Sun capability within the Unistellar App, enabling you to effortlessly observe the Sun.

All you need to do is connect your telescope during the daytime, attach the Smart Solar Filter, and with the Unistellar App, GoTo the Sun automatically.

  • A new solar experience available on Unistellar App (iOS & Android)
  • Smart Go-To Sun function Observe the Sun in less than 2 Minutes
  • Safely Experience With Your Family
  • Witness once-in-a-lifetime solar events
  • Snap & Share pictures


Unlock the secrets of the Sun

Safely witness incredible celestial events with the Unistellar Smart Solar Filter.

On October 14, 2023, capture the “Ring of Fire” during an annular eclipse, and on April 8, 2024, experience a total solar eclipse and catch a glimpse of the Sun’s mesmerizing corona and the stunning “diamond ring” effect.

These once-in-a-lifetime opportunities can be exclusively viewed with the Unistellar Smart Solar Filter from America with other events scheduled in Europe in 2026.


Total Eclipse Annular Eclipse


The safest way to observe the Sun

Experience the next solar eclipse with your loved ones and enjoy the ultimate peace of mind with the Unistellar Smart Solar Filter.

Designed to fit perfectly onto your telescope, guaranteeing it remains secure during use.

Crafted from a premium polymer sheet, the Smart Solar Filter is built to withstand the test of time, reducing 100,000 times the intensity of the Sun’s light for optimal viewing while also safeguarding your telescope.

Whether you’re observing through the eyepiece or via your smartphone, rest assured that the Smart Solar Filter is 100% safe and poses no threat to your eyes. With the Unistellar Smart Solar Filter.



  • Enhanced Vision Technology
  • Unlock the secrets of Solar Activity
  • Observe the Sun in less than 2 Minutes
  • Safely Experience With Your Family
  • A new solar experience available on Unistellar App (Apple | Android)
  • Witness once-in-a-lifetime solar events
  • Works with all Unistellar telescopes



Self Sun Pointing  Yes, in App
Tracking Technology  Yes, in App
Filter Category  White light solar filter
Light Reduction  -100.000 x Sun's light
Neutral Density  5
Material  Polymer sheet
Mount Dimension  143 mm
Sheet Dimension  116 mm
Compatible with  eVscope 2, eQuinox, eQuinox 2 
Solar Eclipses  Oct 14, 2023 and April 8, 2024


    Warning: For your safety, Unistellar strongly advises against viewing the Sun with your naked eye or pointing your telescope at the Sun without the appropriate solar filter. Additionally, it is strictly prohibited to remove the solar filter during any solar observation. Take the necessary precautions to protect yourself and your equipment and enjoy the wonders of the cosmos safely with the Unistellar Smart Solar Filter.


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