Brand: Celestron

Celestron EclipSmart Solar Filters for 5"/6"/8" SCT and 8" EdgeHD (94253/94243/94244)

Brand: Celestron

Celestron EclipSmart Solar Filters for 5"/6"/8" SCT and 8" EdgeHD (94253/94243/94244)

This is a great accessory for any telescope. It will show the surface of the sun in detail. Great for observing sun spots, or watching transits of the inner planets and the ISS.
  • Instantly transform your normal Celestron Schmidt-Cassegrain telescopes (5"/6"/8" SCT) and Celestron 8" EdgeHD telescopes into a yellow-light solar telescope (for a complete list of known compatible scopes, look below)
  • ISO compliant solar safe film protects your eyes when viewing the sun, unlike some other filters on the market
  • Scratch resistant polymer produced by American Paper Optics
  • Designed from the telescope’s lens cap for a snug fit, each filter includes two safety Velcro straps and four self-adhesive Velcro pads for safely securing your solar filter in place
Special Order
$49.95 USD


5" (94253) 6" (94243) 8" (94244)

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Special Order
$49.95 USD

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Product Description

Enhance your viewing experience with Celestron's EclipSmart Solar Filter for Celestron 5"/6"/8” telescopes. With two Velcro straps and four self-adhesive Velcro pads for added safety, you can be assured that the solar filter cannot be accidentally knocked off and will provide Solar Safe, ISO compliant viewing.

Solar Safe Technology

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

Compatible SCTs

List of 5" SCT:

  • 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.

List of 6" SCT:

  • C6 Optical Tube
  • NexStar 6SE
  • NexStar Evolution 6
  • Advanced VX 6"
  • StarSense Explorer 6” Schmidt Cassegrain – International Exclusive
  • SkyProdigy 6"
  • Astro Fi 6” Schmidt Cassegrain - International Exclusive

List of 8" SCT:

  • Advanced VX 8" Schmidt-Cassegrain Telescope
  • Advanced VX 8” EdgeHD Telescope
  • CPC 800 GPS (XLT) Computerized Telescope
  • CPC Deluxe 800 HD Computerized Telescope
  • NexStar 8SE Computerized Telescope
  • NexStar Evolution 8
  • Nexstar Evolution 8 HD with StarSense
  • CGEM - 800 Computerized Telescope
  • CGEM 800 HD Computerized Telescope
  • CGEM II 800 Schmidt-Cassegrain Telescopes
  • CGEM II 800 EdgeHD Telescopes
  • CGX Equatorial 800 Schmidt-Cassegrain Telescopes
  • CGX Equatorial 800 HD Telescopes

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.


Model (Size) 5" (94253) 6" (94243) 8" (94244)
Filter clear aperture: 120mm (4.72") 128.5mm (5.06") 176mm (6.93")
Filter diameter (external): 145mm (5.71") 184mm (7.24") 235mm (9.25")
Filter diameter (internal): N/A 174mm (6.85) 225mm (9.25")
Filter material: Scratch resistant polymer produced by American Paper Optics
Filter thickness: 24mm (0.94") 24mm (0.94") 32mm (1.26")
Nylon safety straps: Two 1" x 4" Velcro straps
Four 1" x 1" Velcro Tabs
Two 1" x 4" Velcro straps
Four 1" x 1" Velcro Tabs
Two 1" x 4" Velcro straps
Four 1" x 1" Velcro Tabs
Telescope Compatibility: Celestron 5" Schmidt-Cassegrain Telescopes Celestron 6" Schmidt-Cassegrain Telescopes Celestron 8" Schmidt-Cassegrain and EdgeHD Telescopes
Weight: 7.93 oz (225 g) 2.6 oz (74 g) 4.2 oz (121 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.

Customer Reviews

Based on 6 reviews
Solar Filter for Celestron 8SE

Amazing quality, fast delivery, came just in time for the solar eclipse! I was profoundly moved by the views I got to see and the pictures I took. Thanks to All-star I was able to fully enjoy the eclipse using my telescope and was able to show my friends and family during the event. Thanks for a memory of a lifetime!!

Great Solar Filter

I purchased this filter for the April 8, 2024 eclipse. It worked great and was easy to use. It slide into the front of my Celesteon 8" SCT the exact same as the dust cap that came with the scope, so snug easy fit.

If you're looking for a great white light filter for solar imaging for sunspots, this filter is perfect and easy.

Exactly what I was looking for

Fits the end of my 8se exactly. Locks in the same as the standard cover so no need to use the straps that were included. As advertised, blocks 99% of light so makes viewing the sun safe and easy.

Great buying experience

Super happy about my purchasr. All-star made the experience easy and reassuring

Needed a solar filter

Nicholas came through on short notice to set me up with a filter in time for the October eclipse. Worked perfectly! Thank you

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