EclipSmart Solar Filter - 5" SCT

SKU: 94253

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  • Regular price $49.95

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ECLIPSE ITEMS ARE NOT RETURNABLE Solar Eclipse Glasses, Solar Filters, Solar Telescopes, and other eclipse related accessories and memorabelia are not returnable due to the event based nature of these items.

  • Compatible with newer model c5 SCT telescopes ONLY: Will not fit on C5 models older than about 2007. If you have  classic C5, this filter will not fit! See compatible models below.
  • ISO-CERTIFIED SOLAR TELESCOPE FILTER: Certified to comply with the ISO 12312-2 international safety standard for filters for direct viewing of the Sun.
  • SAFE, SNUG FIT: Two hook and loop straps keep your filter securely attached to your telescope’s objective.
  • SOLAR FILM MADE IN THE USA: Our Solar Safe film is produced in the USA by American Paper Optics, one of the suppliers recommended by NASA for safe solar viewing.
  • GREAT VIEWS AND IMAGES: This filter features an orange tint, producing a natural look perfect for visual observing and capturing images through your telescope.

Turn your Celestron 5” Schmidt-Cassegrain telescope into a solar scope! The EclipSmart Eclipse Solar Filter is a must-have accessory perfect for viewing the Sun and eclipses like the 2024 Total Solar Eclipse. Affordable, easy to use, and best of all, ISO-certified Solar Safe, all Celestron EclipSmart products comply with the latest ISO 12312-2 standards. This solar filter is custom designed for Celestron 5” Schmidt-Cassegrain telescopes. Two hook and loop straps securely hold the filter in place for a safe, snug fit.


Compatible Telescopes:

  • NexStar 5SE
  • Popular Science by Celestron StarSense Explorer 5”
  • C5 Spotting Scope
  • StarSense Explorer 5” Schmidt-Cassegrain – International Exclusive
  • Astro Fi 5” Schmidt-Cassegrain – International Exclusive

*The Solar filter will not work with C5s manufactured before 2007.


Solar Safe Technology

EclipSmart solar products feature Solar Safe filter technology—the ultimate protection from harmful solar radiation, including IR and UV light, plus 99.999% of visible light. Celestron Solar Safe filter technology is GUARANTEED SAFE for direct observation of the Sun and has been independently tested by SAI Global Assurance Services.

Solar Safe products conform to and meet the transmission requirements of ISO 12312-2, Filters for Direct Observation of the Sun, EN 1836:2005 + A1:2007 (E) for an E15 Filter for the Direct Observation of the Sun and AS/NZS 1338.1:2012, Filters for Eye Protectors.

Important safety note: inspect your filter before every use. Do not use and discard if damaged, torn, punctured, or separated from the frame in any way.


Upcoming Eclipses

2024 - On April 8, 2024, the Moon will completely cover the Sun during an awe-inspiring Total Solar Eclipse. Observers within the path of totality will witness the sun’s dazzling corona, observe the “diamond ring” effect, and see day turn to night. Click here for more info.


Telescope Compatibility: Celestron 5" Schmidt-Cassegrain Telescopes
Filter clear aperture: 120mm (4.72")
Filter diameter (external): 145mm (5.71")
Filter diameter (internal): N/A
Filter material: Scratch resistant polymer produced by American Paper Optics
Filter thickness: 24mm (0.94")
Solar image color: Orange
Nylon safety straps: Two 1" x 4" hook and loop straps, Four 1" x 1" hook and loop Tabs
Weight: 7.93 oz (225 g)
Solar Warning
  • Only observe the Sun with ISO-certified eye protection, such as the filter found in this EclipSmart product. Never look directly at the Sun with the naked eye or a non-filtered optic. Permanent and irreversible eye damage may result.
  • Never tamper with or remove the permanently placed glass filters in this optic. Doing so is dangerous and will void your warranty.
  • Never leave your optic unsupervised. Make sure an adult who is familiar with its correct operating procedures is with your optic at all times, especially when children are present.
  • Never remove your eye protection when looking directly at the Sun during partial phases of a solar eclipse.
California Residents View Proposition 65 Warning


    Barcode: 050234942539