You’re planning to observe the next solar event, but you’re concerned about eye safety and optical quality. Choosing the right telescope with a solar filter isn’t straightforward—aperture size, filter compliance, and durability all matter. We’ve evaluated nine top models against critical safety standards and performance metrics. What separates the best from the rest?
| Celestron EclipSmart Solar Eclipse Telescope Filter 8 |  | Best for SCT Telescopes | Primary Purpose: Solar eclipse viewing filter for 8″ telescopes | Aperture Size: 8″ (Schmidt-Cassegrain/EdgeHD models) | Magnification Range: Variable (depends on eyepiece used) | CHECK ON AMAZON | Read Our Analysis |
| Celestron EclipSmart Solar Eclipse Telescope Camera Filter |  | Best Value Filter | Primary Purpose: Solar eclipse/sunspot viewing filter for multiple telescope types | Aperture Size: 75-100mm objective diameter range | Magnification Range: Variable (depends on eyepiece used) | CHECK ON AMAZON | Read Our Analysis |
| MEEZAA 90mm Refractor Telescope for Astronomy |  | Best Beginner Refractor | Primary Purpose: Refractor telescope for astronomy observation | Aperture Size: 90mm | Magnification Range: 32X-240X | CHECK ON AMAZON | Read Our Analysis |
| HUGERSTAR 90mm Professional Refractor Telescope for Adults |  | Best Premium Refractor | Primary Purpose: Refractor telescope for astronomy observation | Aperture Size: 90mm | Magnification Range: 32X-240X | CHECK ON AMAZON | Read Our Analysis |
| MEEZAA 90mm Refractor Telescope with Tripod & Accessories |  | Most Versatile Refractor | Primary Purpose: Refractor telescope for astronomy observation | Aperture Size: 90mm | Magnification Range: 22X-165X | CHECK ON AMAZON | Read Our Analysis |
| Thousand Oaks Optical 6×6 Solar Filter Sheet |  | Budget DIY Option | Primary Purpose: DIY solar filter sheet for telescopes/binoculars | Aperture Size: 6″x6″ sheet (customizable) | Magnification Range: Variable (depends on telescope used) | CHECK ON AMAZON | Read Our Analysis |
| Telescopes for Adults Astronomy 80mm Aperture Refractor |  | Best Compact Refractor | Primary Purpose: Refractor telescope for astronomy observation | Aperture Size: 80mm | Magnification Range: 30X-66X | CHECK ON AMAZON | Read Our Analysis |
| Vilupvie 70mm Refractor Telescope with Tripod & Accessories |  | Best Portable Setup | Primary Purpose: Refractor telescope for astronomy observation | Aperture Size: 70mm | Magnification Range: 20X-200X | CHECK ON AMAZON | Read Our Analysis |
| Helios Glass Telescope Solar Filter by Seymour Solar |  | Best Glass Filter | Primary Purpose: Glass solar filter for safe sun observation | Aperture Size: 5″ (127mm) for 4.625-4.875″ tubes | Magnification Range: Variable (depends on eyepiece used) | CHECK ON AMAZON | Read Our Analysis |
| Celestron EclipSmart Safe Solar Eclipse Telescope Filter |  | Best Newtonian Filter | Primary Purpose: Solar eclipse/sunspot viewing filter for 130mm telescopes | Aperture Size: 130mm (for specific models) | Magnification Range: Variable (depends on eyepiece used) | CHECK ON AMAZON | Read Our Analysis |
More Details on Our Top Picks
Celestron EclipSmart Solar Eclipse Telescope Filter 8
Are you looking for a solar filter that’ll work seamlessly with your existing Celestron 8″ telescope? The Celestron EclipSmart Solar Eclipse Telescope Filter 8 is your answer. This ISO 12312-2 compliant filter fits 8″ Schmidt-Cassegrain and EdgeHD models perfectly. The Solar Safe film, manufactured in the USA by American Paper Optics and third-party tested, delivers safe sun viewing with an orange tint that provides natural visual observing. Two hook-and-loop straps ensure secure attachment to your objective lens. You’ll appreciate the snug, reliable fit during eclipse events. Backed by Celestron’s limited lifetime warranty and US-based expert support since 1960, this filter combines safety, compatibility, and quality optics you can trust.
- Primary Purpose:Solar eclipse viewing filter for 8″ telescopes
- Aperture Size:8″ (Schmidt-Cassegrain/EdgeHD models)
- Magnification Range:Variable (depends on eyepiece used)
- ISO 12312-2 Compliance:ISO 12312-2:2015(E) compliant
- Included Accessories:Hook-and-loop straps only
- Warranty:Limited Lifetime US Warranty
- Additional Feature:Fits 8″ Schmidt-Cassegrain telescopes
- Additional Feature:Hook-and-loop strap attachment
- Additional Feature:Limited Lifetime US Warranty
Celestron EclipSmart Solar Eclipse Telescope Camera Filter
Looking to photograph or observe solar events safely? The Celestron EclipSmart Solar Eclipse Telescope Camera Filter delivers professional-grade protection for your equipment. This ISO 12312-2:2015(E) certified filter blocks 99.999% of visible light while eliminating harmful IR and UV radiation. You’ll get a secure fit with adjustable side panels and an elastic band, compatible with 75–100 mm objective diameters across most Celestron models. The orange-tinted film, produced by NASA-approved American Paper Optics, provides natural-looking visuals and images. It’s lightweight, folds flat for storage, and includes a reusable bag. With independent third-party testing, a two-year warranty, and expert US support, you’re investing in reliable solar observation.
- Primary Purpose:Solar eclipse/sunspot viewing filter for multiple telescope types
- Aperture Size:75-100mm objective diameter range
- Magnification Range:Variable (depends on eyepiece used)
- ISO 12312-2 Compliance:ISO 12312-2:2015(E) compliant
- Included Accessories:Adjustable panels, elastic band, reusable storage bag
- Warranty:2-year US warranty
- Additional Feature:Fits 75–100mm objectives
- Additional Feature:Foldable design with storage bag
- Additional Feature:NASA & AAS approved
MEEZAA 90mm Refractor Telescope for Astronomy
The MEEZAA 90mm Refractor Telescope excels for anyone seeking an affordable entry point into astronomy without sacrificing optical quality or ease of use. You’ll appreciate its fully multi-coated optical glass lenses that deliver bright, clear views across 32X–240X magnification ranges. The package includes two eyepieces and a 3X Barlow lens, plus a sturdy adjustable tripod and phone adapter for capturing celestial images. Setup takes roughly ten minutes, making it perfect for backyard stargazing or camping trips. With 754 reviews averaging 4.5 stars and ranking #5 in telescope refractors, this model proves itself reliable for both beginners and experienced observers.
- Primary Purpose:Refractor telescope for astronomy observation
- Aperture Size:90mm
- Magnification Range:32X-240X
- ISO 12312-2 Compliance:Not applicable (astronomy telescope)
- Included Accessories:Two eyepieces, 3X Barlow lens, phone adapter, tripod, carry bag
- Warranty:Not specified
- Additional Feature:90mm aperture, 800mm focal length
- Additional Feature:Includes phone adapter attachment
- Additional Feature:4.5/5 stars, 754 reviews
HUGERSTAR 90mm Professional Refractor Telescope for Adults
If you’re seeking a telescope that combines professional-grade optics with beginner-friendly operation, HUGERSTAR’s 90mm refractor delivers both without compromise. You’ll appreciate the fully multi-coated lenses that maximize light transmission for crisp, brilliant views. The 32X–240X magnification range covers everything from wide celestial vistas to detailed lunar craters. You get two eyepieces and a 3X Barlow lens, plus a 5×24 finder scope for quick object location. The adjustable stainless steel tripod accommodates various heights, while the included phone adapter lets you capture observations. Setup takes under ten minutes with no tools required. Whether you’re exploring space or earthbound landscapes, this telescope provides accessible, quality viewing.
- Primary Purpose:Refractor telescope for astronomy observation
- Aperture Size:90mm
- Magnification Range:32X-240X
- ISO 12312-2 Compliance:Not applicable (astronomy telescope)
- Included Accessories:Two eyepieces, 3X Barlow lens, finder scope, phone adapter, tripod, moon filter, accessory tray
- Warranty:Not specified
- Additional Feature:Includes moon filter for glare
- Additional Feature:5×24 finder scope included
- Additional Feature:90% assembly in 10 minutes
MEEZAA 90mm Refractor Telescope with Tripod & Accessories
For families and beginners seeking a complete stargazing solution, you’ll find the MEEZAA 90mm Refractor Telescope delivers impressive versatility without requiring extensive setup or additional purchases. The fully multi-coated optics provide bright, sharp views of the Moon, planets, and deep-sky objects through magnifications ranging from 22X to 165X. You’ll appreciate the 90° zenith mirror for comfortable upright viewing and the included accessories—two eyepieces, 3X barlow lens, moon filter, and phone adapter—that eliminate extra expenses. The sturdy, height-adjustable tripod accommodates users of all heights, while the portable design fits everything into a carrying bag. Quick assembly requires no tools, making stargazing accessible immediately.
- Primary Purpose:Refractor telescope for astronomy observation
- Aperture Size:90mm
- Magnification Range:22X-165X
- ISO 12312-2 Compliance:Not applicable (astronomy telescope)
- Included Accessories:Two eyepieces, 3X Barlow lens, finder scope, moon filter, phone adapter, zenith mirror, tripod, carry bag
- Warranty:Not specified
- Additional Feature:90° zenith mirror for upright
- Additional Feature:22X–165X magnification range
- Additional Feature:Three accessory holes built-in
Thousand Oaks Optical 6×6 Solar Filter Sheet
Budget-conscious astronomers who want to observe sunspots and solar granulation without spending a fortune on factory-made filters will appreciate this DIY solution from Thousand Oaks Optical. You’ll get a 6×6-inch black polymer sheet that’s stronger than Mylar, with filtering properties embedded directly in the substrate for durability. The sun appears natural orange through this filter, giving you authentic viewing conditions. Thousand Oaks Optical has manufactured safe solar filters for over 30 years, backing this product with a five-year warranty. Simply attach it securely to your telescope or binoculars with tape, and you’re ready for solar observation. At a fraction of factory-made filter costs, you’re getting professional-grade protection for serious skywatching.
- Primary Purpose:DIY solar filter sheet for telescopes/binoculars
- Aperture Size:6″x6″ sheet (customizable)
- Magnification Range:Variable (depends on telescope used)
- ISO 12312-2 Compliance:Not specified
- Included Accessories:Solar filter sheet only
- Warranty:5-year guarantee
- Additional Feature:DIY filter sheet material
- Additional Feature:Stronger than Mylar polymer
- Additional Feature:Five-year manufacturer warranty
Telescopes for Adults Astronomy 80mm Aperture Refractor
The 80mm aperture refractor stands out as an excellent choice for beginners and families who want crisp, bright views without overwhelming complexity. Its fully coated green optics glass lens delivers bright, clear images perfect for moon and planet observation. You’ll appreciate the adjustable 30x-66x magnification with two eyepieces, allowing you to customize your viewing experience. The included 5×24 finder scope with crosshair helps you quickly locate celestial objects. Assembly’s straightforward, with detailed instructions and video guides included. You’ll get a customized mobile phone adapter for capturing images, adjustable tripod, and convenient transport bag. This portable telescope suits home viewing, bird watching, and landscape observation, making it ideal for astronomy beginners and kids aged eight to twelve.
- Primary Purpose:Refractor telescope for astronomy observation
- Aperture Size:80mm
- Magnification Range:30X-66X
- ISO 12312-2 Compliance:Not applicable (astronomy telescope)
- Included Accessories:Two eyepieces, finder scope, phone adapter, tripod, carry bag, manual/video instructions
- Warranty:Not specified
- Additional Feature:80mm fully coated optics
- Additional Feature:Mobile phone adapter included
- Additional Feature:Ideal for ages 8–12
Vilupvie 70mm Refractor Telescope with Tripod & Accessories
Looking to introduce a child or yourself to astronomy without breaking the bank? The Vilupvie 70mm refractor telescope delivers exceptional value for beginners. You’ll enjoy crisp views of the Moon, Saturn, and Jupiter through fully multi-coated optics that maximize light transmission. The adjustable tripod extends from 16 to 51 inches, accommodating various heights and angles. Three interchangeable eyepieces paired with a 3x Barlow lens give you magnifications from 20x to 200x. You can capture celestial photos using the smartphone adapter, while the included moon filter protects your eyes during lunar observation. Setup’s tool-free, and it comes with a travel backpack for portability.
- Primary Purpose:Refractor telescope for astronomy observation
- Aperture Size:70mm
- Magnification Range:20X-200X
- ISO 12312-2 Compliance:Not applicable (astronomy telescope)
- Included Accessories:Three eyepieces, 3X Barlow lens, finder scope, moon filter, phone adapter, tripod, backpack
- Warranty:Lifetime technical support
- Additional Feature:Three interchangeable eyepieces included
- Additional Feature:16″–51″ adjustable aluminum tripod
- Additional Feature:Lifetime technical support included
Helios Glass Telescope Solar Filter by Seymour Solar
Want a solar filter that delivers professional-grade results without the hefty price tag? The Helios Glass Telescope Solar Filter by Seymour Solar does exactly that. This 5-inch filter blocks 99.999% of sunlight with its ND5-rated Helios Solar Glass, featuring reflective coatings on both sides for superior image contrast and clarity. The lightweight aluminum cell mounts securely via clamp-on design with nylon thumbscrews and felt tabs protecting your telescope’s objective lens. You’ll safely observe sunspots, eclipses, and solar features with remarkable detail. Its clip-on attachment makes eclipse sequencing effortless—simply remove during totality and reattach as the sun reappears. Fits most telescopes with optical tube diameters between 4 5/8″ and 4 7/8″, this durable filter earns consistent five-star ratings.
- Primary Purpose:Glass solar filter for safe sun observation
- Aperture Size:5″ (127mm) for 4.625-4.875″ tubes
- Magnification Range:Variable (depends on eyepiece used)
- ISO 12312-2 Compliance:ND5-rated (99.999% sunlight block)
- Included Accessories:Aluminum cell with clamp-on mounting, nylon thumbscrews
- Warranty:Manufacturer warranty available
- Additional Feature:ND5-rated, blocks 99.999% sunlight
- Additional Feature:Helios Solar Glass material
- Additional Feature:Easy attach/detach clamp-on design
Celestron EclipSmart Safe Solar Eclipse Telescope Filter
If you’re serious about observing solar eclipses and sunspots without compromising your eyesight, Celestron’s EclipSmart filter delivers professional-grade safety that won’t break the bank. The filter conforms to ISO 12312-2:2015(E) standards and features USA-made solar film independently third-party tested for reliability. Its orange tint provides natural solar viewing while maintaining image quality for both visual observation and astrophotography. Two hook-and-loop straps ensure a secure, snug fit on your telescope’s objective, while a protective safety cap guards the outer surface. Compatible with popular Celestron models like the PowerSeeker 127EQ and NexStar 130SLT, you’ll get backed by Celestron’s Limited Lifetime Warranty and US-based technical support. Since 1960, Celestron’s established reputation makes this filter a trustworthy choice for safe solar exploration.
- Primary Purpose:Solar eclipse/sunspot viewing filter for 130mm telescopes
- Aperture Size:130mm (for specific models)
- Magnification Range:Variable (depends on eyepiece used)
- ISO 12312-2 Compliance:ISO 12312-2:2015(E) compliant
- Included Accessories:Hook-and-loop straps, safety cap
- Warranty:Limited Lifetime US Warranty
- Additional Feature:Compatible with 130mm reflector telescopes
- Additional Feature:Safety cap protects outer surface
- Additional Feature:Orange tint for natural viewing
Factors to Consider When Choosing a Telescope With a Solar Filter
When you’re shopping for a solar telescope, you’ll want to evaluate aperture size and magnification alongside solar filter safety standards to ensure you’re getting both performance and protection. You should also examine the telescope’s optical quality, verify that the filter fits your specific model, and consider whether portability and included accessories match your observing needs. These five factors work together to determine which solar telescope will serve you best.
Aperture Size And Magnification
Why does aperture matter so much for solar observation? Larger apertures gather more light and reveal fainter solar details with better resolution, but they’ll require sturdier mounts and careful filter handling. A 90mm to 100mm aperture offers you an ideal balance between portability and adequate detail capture when paired with proper ND filters.
Magnification depends on your focal length and eyepiece choice. You’ll benefit from steadier, lower magnification to minimize atmospheric blur during safe filtered viewing. Excessive magnification without stable seeing conditions or quality filters yields dim, blurry images. Interchangeable eyepieces and 3X Barlow multipliers can boost magnification, but you must pair them with safe solar filters. Maximum useful magnification ultimately depends on your seeing conditions and filter quality.
2. Solar Filter Safety Standards
How do you know a solar filter is actually safe? You’ll want to verify that your filter conforms to ISO 12312-2:2015(E), the international standard for solar observation safety. Look for filters made with Solar Safe film or glass that’s been independently tested by third-party laboratories—this third-party verification provides reliable assurance rather than manufacturer claims alone.
Your filter should block 99.999% of visible light while protecting against harmful IR and UV radiation. Additionally, ensure the filter attaches securely to your telescope’s objective using straps, clips, or clamp mounts, preventing accidental dislodging during observations.
Finally, choose manufacturers offering warranties and reputable support. This backing typically indicates adherence to safety standards and commitment to reliable solar observing equipment.
3. Telescope Optical Quality
Once you’ve secured a properly certified solar filter, the telescope’s optical quality becomes your next critical consideration. You’ll want a larger aperture, as it delivers higher resolution and brighter views while maintaining manageable aberrations. Fully multi-coated optics maximize light transmission and reduce glare, giving you crisper solar detail during eclipse viewing.
Your focal length and aperture combination determines which eyepieces you’ll use effectively. An 800mm focal length with 90mm aperture, for example, provides optimal magnification ranges and image brightness for sharp solar observation.
Don’t overlook viewing comfort either. A 90° zenith mirror reduces shakiness that degrades perceived optical quality, allowing you to maintain steady focus on the sun’s corona and prominences throughout your viewing session.
4. Filter Compatibility And Fit
Examine the mounting method carefully. Adjustable side panels, elastic bands, or hook-and-loop straps should hold the filter snugly without wobbling. Finally, confirm the filter material: carbon-based solar film or glass with proper coatings. Verify it includes safety caps and alignment features for easy removal during totality or equipment swaps.
5. Portability And Accessory Inclusions
When you’re planning solar observations, portability matters just as much as optical quality. You’ll want to evaluate the telescope’s weight and folded dimensions to ensure they fit your transport constraints. Look for models that include lightweight tripods and protective carry bags, which streamline your setup process.
Check whether the kit comes with essential accessories like smartphone adapters for quick imaging, moon filters, Barlow lenses, and eyepieces. This inclusion reduces your need for additional purchases and keeps your overall package compact. Examine the filter’s design—fold-flat or small housing options minimize bulk significantly.
6. Warranty And Brand Reliability
Beyond evaluating what comes in the box, you’ll need to assess the manufacturer’s backing and credibility before committing to a purchase. Prioritize brands with established histories in optics and endorsements from NASA or astronomical societies—these credentials signal genuine expertise. Look for multi-year or lifetime warranties specifically covering solar filters against defects and failures, not just general equipment coverage.
Verify that your chosen filter carries ISO 12312-2:2015(E) certification, confirming it meets rigorous solar viewing safety standards. Request third-party lab testing documentation proving the filter’s transmission rates and safety performance match manufacturer claims. Additionally, evaluate customer support quality and return policies. Reliable companies stand behind their products with hassle-free returns and responsive assistance, protecting your investment and ensuring peace of mind during solar observations.
Frequently Asked Questions
Can I Use a Solar Filter on Any Telescope Model or Are There Restrictions?
You can’t use a solar filter on every telescope model. You’ll need compatible aperture sizes, proper filter specifications, and secure attachment mechanisms. Always verify your telescope’s specifications before purchasing a solar filter to ensure safe compatibility.
How Often Should Solar Filters Be Replaced for Safety and Optimal Viewing?
You should replace your solar filter every 2-3 years or immediately if you notice any scratches, pinholes, or damage. Regular inspection before each use ensures you’re protecting your eyes safely while maintaining optimal viewing quality.
What Is the Difference Between Visual and Camera Solar Filters for Telescopes?
You’ll find that visual solar filters let your eye observe directly through the eyepiece, while camera filters attach to your telescope’s camera sensor. Camera filters require different optical properties to protect your equipment from intense solar heat and radiation safely.
Are Solar Filters Compatible With Eyepieces From Different Manufacturers?
You’ll find that most solar filters work with eyepieces from different manufacturers since they’re designed to fit standard barrel sizes. However, you should verify compatibility with your specific eyepiece diameter before purchasing.
How Do I Properly Care for and Store Solar Filters Between Uses?
You’ll store your solar filters in a cool, dry place away from direct sunlight. Keep them in protective cases, avoid touching the filter surface, and inspect them regularly for damage before each use.
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