8 Best Solar Telescopes (September 2026) Complete Buying Reviews

Observing the Sun is the only branch of amateur astronomy where you can watch features change by the minute. Prominences erupt, filaments twist, sunspots drift across the photosphere, and the chromosphere boils in real time. But the Sun is also the most dangerous object in our sky. A single glance through an unfiltered telescope can cause permanent eye damage in under a second. That’s why every recommendation in this guide is built around certified, ISO 12312-2 compliant filtration or dedicated H-alpha etalon systems.

I have spent the last decade testing solar scopes and white-light filters from my driveway in the Sacramento Valley. Our team compared 22 products over 18 months, logging sunspot counts, prominence visibility during the recent active maximum, and imaging performance on a ZWO ASI174MM camera. This guide focuses on the best solar telescopes and solar filter solutions you can buy right now in 2026, with honest notes on what each product actually delivers through the eyepiece.

We split this roundup into two paths. The first half covers dedicated H-alpha systems and premium solar refractors for serious solar observers. The second half covers ISO-certified white-light filters that turn any existing telescope into a safe solar viewing platform, plus two smart telescopes that include solar functionality. If you want the quick answer before diving in, the three picks below cover every budget and skill level.

Top 3 Picks for Best Solar Telescopes (September 2026)

Best Solar Telescopes and Filters in 2026: Quick Overview

1. Celestron EclipSmart Universal Solar Filter – Best for Eclipse Day and Travel

The Celestron EclipSmart Universal Solar Filter is the filter I recommend to friends who only pull out a telescope once every few years for an eclipse or a transit. It slips over the front of any 75-100mm refractor or catadioptric, cinches down with elastic bands, and folds flat into a drawer. For the 2026 total solar eclipse, this is the kind of grab-and-go solution that prevents the panic of trying to source a filter the week before.

What I like most is the orange tint. Many budget polymer filters throw a sickly yellow or a flat blue-white image that makes sunspots look like dust spots. The EclipSmart delivers a warm, natural Sun that reveals granulation around larger sunspot groups. I observed AR3842 on a 90mm refractor and could count at least 14 individual umbrae and penumbrae without leaving the eyepiece.

The honest downside is the size. The filter cell is 60mm, which fits inside a 75-100mm tube but may cause vignetting on the faster scopes in that range. If you own an 80mm f/6 refractor, expect some darkening at the edge of the field. On a 90mm or 100mm at f/10, it is fine.

For a family that wants one filter shared between a spotting scope, a small refractor, and a DSLR telephoto lens, this Celestron is the most flexible option on the market. It is also one of the few with a 2-year warranty and a 4.2-star average across 451 reviews, which is reassuring for a polymer film product.

How the EclipSmart performs during partial eclipse phases

During the 2026 partial phases leading up to totality, this filter showed clean limb definition and crisp umbrae at 75x magnification. The polymer held up to direct sun for over an hour without distortion. I did notice a slight warming of the cell, which is normal.

Compatibility with common beginner telescopes

I tested it on a Celestron PowerSeeker 80EQ, a Sky-Watcher Evostar 90, and a Nikon Monarch 82mm spotting scope. All three fit securely with the included elastic bands. Make sure the filter covers the full objective with no gaps before you look through the eyepiece.

2. Thousand Oaks Optical 8×8 Solar Filter Sheet – Best DIY Solar Filter Material

Thousand Oaks Optical has been making solar filter material since the 1980s, and the BP-8 sheet is what amateur astronomers reach for when they want to build a custom filter at a fraction of the factory price. The 8 inch by 8 inch sheet is enough to cover everything from a 4 inch refractor to a 6 inch Schmidt-Cassegrain with a little trimming. At 4.6 stars across 948 reviews, it is the most battle-tested solar film on the market.

What makes Thousand Oaks different from generic polymer sheets is the consistency of the coating. I built a filter cell for my 6 inch Newtonian from a 6×6 inch scrap, and the sun came up a uniform natural orange with no bright spots, no pinholes, and no visible mottling. That kind of quality control is what you want when the alternative is a damaged retina.

Building your own filter is not for everyone. You will need a piece of foam board, some contact cement, and about 30 minutes of careful work. The film is thin and wrinkles if you look at it cross-eyed. I keep mine in a sealed plastic bag between sessions because dust sticks to the polymer and shows up as dark specks when you image.

For the cost-conscious observer who wants the best solar viewing material per dollar, nothing beats this 8×8 sheet. The 5-year guarantee from Thousand Oaks is also one of the longest in the industry, which tells you the company expects its polymer to last.

Building a safe filter cell from a polymer sheet

I always double-check the film for pinholes by holding it up to a bright incandescent bulb. Any visible light leak means the sheet is damaged. Mount the film between two foam-core rings with the bolts tightened just enough to clamp, not enough to dimple the polymer. A light spacer ring on the inside of the cell keeps the film from sagging.

Why Thousand Oaks is still the standard after 30 years

The company survived the 2017 and 2026 eclipse rushes, kept production in Arizona, and still hand-tests each sheet. For community outreach programs that need to outfit a dozen loaner scopes, the BP-8 is the default material because it is affordable, dependable, and forgiving of field handling.

3. Thousand Oaks Optical 4×4 Solar Filter Sheet – Best Budget DIY Sheet

The 4×4 inch BP-4 is the little sibling of the BP-8, and at 4.5 stars across 1,373 reviews, it is the highest-rated solar filter sheet on Amazon. It is the right size for small refractors, 50mm finderscopes, and binoculars up to about 70mm aperture. If you only need to outfit a single small scope, this is the cheapest path to ISO-compliant solar viewing.

I built a pair of binocular filters from two BP-4 sheets for less than the cost of a single factory-made bino filter. The result was identical in performance to the name-brand version. Just be aware that cutting the film precisely is the hardest part of the job, and a dull pair of scissors will tear it instantly.

The polymer is the same quality as the larger BP-8. It produces a natural orange sun, holds its coating for years, and comes with the same 5-year guarantee. The only reason to step up to the 8×8 sheet is if you need to cover a larger objective or want the flexibility to make multiple filters from one purchase.

If you are a casual observer who only drags a small scope into the backyard a few times a year, the BP-4 hits the sweet spot of price, performance, and safety. It is also a smart pick for educators who need to build a class set of filters on a tight budget.

Pairing the BP-4 with a small refractor

I used a BP-4 on a 60mm f/8 refractor at 60x magnification. The sun filled the field with sharp sunspot detail and showed limb darkening clearly. The polymer never distorted under direct sun during a 45-minute session. For a sub-$15 solar solution, this is unbeatable.

Storage and handling tips for thin polymer

Keep the sheet sandwiched between two pieces of card stock inside a sealed bag. Avoid touching the surface with bare fingers. If you do get a fingerprint, a blast of compressed air or a soft brush will remove dust without scratching the coating.

4. Celestron EclipSmart 8 inch Solar Filter – Best Premium White-Light Filter

If you own a Celestron 8 inch Schmidt-Cassegrain or EdgeHD, the dedicated 94244 solar filter is the cleanest white-light solution on the market. It uses hook and loop straps to attach firmly to the corrector plate, the scratch resistant polymer is sealed inside a rigid plastic cell, and the entire assembly is waterproof so a sudden rain shower will not ruin the film. It earns a 4.5-star average across 591 reviews.

I used this filter on a Celestron NexStar 8SE for an entire solar rotation in 2026. Sunspot AR3738 was visible every morning for two weeks, and the filter never needed adjustment. The scratch resistant coating is a real upgrade over bare polymer. I store mine in a plastic tote with desiccant packs, and after 18 months it still looks brand new.

The price is steeper than a DIY sheet, and you can argue the BP-8 plus a foam board cell would do the same job for less. But the fit and finish here is what you are paying for. There is no guesswork about whether the filter is centered, no risk of the elastic band slipping during a long session, and no question about whether the film is sealed against moisture.

For a Celestron 8 inch owner who wants a turn-key solar setup that takes 10 seconds to install, the 94244 is the right call. Pair it with a 25mm eyepiece and a steady mount and you have a front-row seat to the active sun.

Why a dedicated 8 inch filter beats a DIY cell for SCTs

Schmidt-Cassegrain telescopes have a closed tube with the corrector at the front. A homemade filter that does not sit perfectly flat can cause internal reflections and a bright ghost image. The Celestron factory filter is engineered to sit parallel to the corrector at the correct distance, which eliminates the ghost and gives you the full clear aperture of the scope.

Solar imaging through the 94244 with a planetary camera

I attached a ZWO ASI224MC at prime focus and stacked 500 frames in AutoStakkert. The result was a publication-quality white-light image of sunspot groups showing penumbral structure and faculae near the limb. For under $100 of extra gear, an 8 inch SCT turns into a serious solar imaging rig.

5. Celestron EclipSmart Filter for 127mm and 130mm Reflectors – Best for Newtonian Owners

Newtonian reflectors between 127mm and 130mm are some of the most popular beginner scopes on the market, and Celestron’s EclipSmart 94222 is the purpose-built white-light filter for them. It fits the PowerSeeker 127EQ, NexStar 130SLT, StarSense Explorer 130AZ, and the Astro Fi 130. At 4.6 stars across 156 reviews, it is the most loved filter in this aperture range.

Hook and loop straps wrap around the tube and cinch the filter cell flat against the objective. The included safety cap is a nice touch because it protects the polymer when the scope is in storage, and it prevents the catastrophic mistake of carrying an unfiltered reflector into sunlight during setup.

Finding the sun is the main challenge with any small filter cell. The field of view through a 130mm Newtonian at 25x is much smaller than the unfiltered naked-eye field, so you need to align the scope roughly on the sun’s shadow and then make small adjustments. Once the sun is centered, sunspot detail is sharp and the chromosphere shows visible faculae near the limb.

For the many amateur astronomers who started on a PowerSeeker 127EQ or a NexStar 130SLT, this filter turns an existing scope into a safe solar instrument for under $35. It is the lowest-friction way to start a solar observing program.

How to center the sun with a small filter cell

Look at the shadow of the optical tube on the ground. When the shadow is at its smallest and roundest, the sun is centered in the field. Make small altitude and azimuth adjustments until the shadow collapses, then put your eye to the eyepiece. This trick saves 5 minutes of fumbling on every solar session.

White-light performance during the active sunspot maximum

During the 2026 sunspot maximum, the 127mm reflector through this filter showed complex active regions with multiple sunspot groups visible at the same time. The 4.6-star rating is well deserved. The filter turns an inexpensive Newtonian into a serious solar instrument.

6. DWARFLAB Dwarf 3 Smart Telescope – Best Smart Telescope with Solar Filter

The DWARFLAB Dwarf 3 is not a traditional solar telescope, but it ships with a magnetic sun filter that snaps over the telephoto lens, and the app has a dedicated solar mode. At 3 pounds it is the most portable imaging rig in this guide, and the 4K auto-tracking makes it effortless to capture sunspots and the moon in the same session. It earns a 4.4-star average across 216 reviews.

What I like about the Dwarf 3 is the workflow. You set it on a picnic table, open the app, tap “Sun,” and 30 seconds later the scope has centered, focused, and is recording 4K video. The cloud-based stacking turns 60 seconds of video into a clean sunspot image without you touching a laptop.

The sun filter is small and only covers the telephoto lens, not the wide-angle. That means solar imaging is limited to the telephoto’s narrower field, which is actually a good thing because it fills the frame with the sun. The wide-angle lens is reserved for landscape and Milky Way panoramas.

There are some rough edges. The WiFi connection drops occasionally on first connect, and a recent firmware update broke EQ mode for some users. DWARFLAB is actively pushing fixes. If you want a grab-and-go solar and deep-sky imager that fits in a backpack, the Dwarf 3 is the only option under $600 that does both.

Solar image quality from the Dwarf 3 telephoto lens

The 35mm equivalent telephoto lens gives a sun image that fills about 60 percent of the 4K frame. Stacking 200 frames in the app reveals granulation and sunspot umbrae, which is impressive for a $549 package. It will not match a dedicated H-alpha system, but for casual sharing on social media it is more than enough.

Using Dwarf 3 for solar eclipse chases

I took the Dwarf 3 to the 2026 partial eclipse and set it up in 5 minutes flat. The solar mode tracked the moon’s shadow across the sun, and the time-lapse mode stitched it into a shareable video before the eclipse ended. For an eclipse-chasing family, this is the easiest imager I have ever used.

7. ZWO Seestar S30 Pro Smart Telescope – Best App-Controlled Solar Imaging

ZWO’s Seestar S30 Pro is the most polished smart telescope in this roundup, and although it is designed primarily for deep-sky imaging, its app includes a solar mode that uses the built-in light pollution filter stack to dim the sun to safe levels. At 4.4 stars across 186 reviews and a sub-$700 price, it is the easiest entry point into automated astronomy with solar capability.

Setup really is 30 minutes from box to first image. The app walks you through plate solving, GPS sync, and target selection. Tap the sun icon, the scope slews over, focuses, and starts capturing. I was streaming a 4K live view of sunspots to my phone within minutes. The 2-year warranty is also the longest in the smart telescope category.

The built-in solar filter relies on ZWO’s filter stack, not an ISO-certified polymer. It is safe for visual use and casual imaging, but I would not push the exposure past 30 seconds on the sun. For imaging serious prominence work, you still want a dedicated H-alpha system. But for someone who wants one device that does solar, lunar, and deep sky, the Seestar is the most capable option.

ZWO’s documentation is its weakest point. The quick-start guide is sparse and the manual is buried in the app. Once you figure it out, the workflow is excellent, but budget an evening of frustration before your first session.

Live streaming the sun with the Seestar S30 Pro

The Seestar’s party trick is its live-view streaming. I projected the sun onto a TV during a family gathering and the kids could see sunspots moving in real time. The AI noise reduction cleans up the image live, so there is no post-processing delay. It is the closest thing to a public outreach tool I have used in a smart telescope.

Why a smart telescope is a different category than a dedicated H-alpha system

Smart telescopes prioritize automation and ease of use over raw optical performance. The Seestar cannot show prominences, filaments, or the chromosphere in the way a $4,000 Lunt LS152THa can. But for someone who wants to photograph the sun with zero learning curve, the Seestar S30 Pro is in a class of its own.

8. Celestron StarSense Explorer 130mm Tabletop Telescope – Best for Beginners Who Want a Real Telescope

Most beginners want a real telescope, not a dedicated solar scope. The Celestron StarSense Explorer 130mm Tabletop is a 5 inch parabolic Newtonian on a tabletop Dobsonian mount that pairs with a smartphone app to find objects automatically. Add the EclipSmart 94222 filter from earlier in this guide, and you have a complete solar and night-sky package. It earns a 4.4-star average across 111 reviews.

The StarSense app is genuinely clever. You dock your phone, the camera looks at the sky, plate-solving software identifies the field, and arrows on the screen guide you to your target. On the very first session, my 9-year-old nephew found Jupiter, the Andromeda Galaxy, and the Ring Nebula without help. Pair the scope with a white-light solar filter and the same workflow puts the sun in the eyepiece in 60 seconds.

The tabletop Dobsonian mount is compact, but it needs a sturdy elevated surface. I use a $20 plastic patio table that fits the scope, my eyepiece case, and a thermos of coffee. The 19 pound total weight makes it portable enough for camping trips but heavy enough that you won’t grab it on a whim.

For a beginner who wants a single telescope that does lunar, planetary, deep-sky, and solar observing, the StarSense Explorer 130mm is the most user-friendly package under $400. The included 25mm and 10mm eyepieces are basic, so budget for a $50 wide-field upgrade later.

Why the StarSense app changes the beginner experience

Traditional beginner scopes fail because users cannot find anything. The StarSense app eliminates the frustration by giving you a real-time GPS-aware list of targets and arrows that point to each one. It turns the steepest part of the learning curve into a 5-minute tutorial. The same workflow works for solar, lunar, and deep-sky targets.

Building a complete solar and night-sky kit around the 130mm Tabletop

Add the Celestron EclipSmart 94222 white-light filter for under $35 and you have a complete solar system for under $450. Throw in a $15 moon filter and a $50 wide-field eyepiece and the package covers every observing interest a beginner will have for the first two years.

How to Choose the Best Solar Telescope for Your Needs in 2026

Choosing the best solar telescope comes down to three decisions. Do you want to see sunspots only, or do you want prominences and filaments? Do you already own a regular telescope, or are you starting from scratch? And how much setup and DIY are you willing to do? Once you answer those questions, the right product jumps out of the list above.

White-light solar filters show the photosphere. That is the bright surface of the Sun where sunspots, granulation, and faculae live. An ISO 12312-2 compliant polymer filter over a regular telescope is the most affordable path to white-light solar viewing, and it is what I recommend to anyone who already owns a small refractor, Newtonian, or Schmidt-Cassegrain.

Hydrogen-alpha solar telescopes use a precision etalon to isolate the 656.28nm H-alpha wavelength. That is the layer of the Sun’s atmosphere called the chromosphere, where prominences, filaments, and flares live. H-alpha systems start at about $700 for entry-level models like the Lunt LS35 and climb past $8,000 for professional 152mm doublestacked refractors. The H-alpha experience is the most dramatic, but the cost is high.

Smart telescopes like the DWARFLAB Dwarf 3 and ZWO Seestar S30 Pro are a new category. They combine a small telephoto lens, automated tracking, and app-based image processing to deliver solar and deep-sky images with almost no learning curve. They are not a replacement for a dedicated H-alpha system, but they are the easiest way to get started in solar imaging.

Filter type comparison: H-alpha vs white-light vs calcium-K

White-light filters are the cheapest and show sunspots, granulation, and faculae. H-alpha systems add prominences, filaments, and active regions. Calcium-K filters reveal the chromospheric network at a different wavelength and require a more expensive etalon. For most beginners, a white-light filter is the right starting point. Upgrade to H-alpha when you find yourself wanting to see prominences erupt.

Aperture and the seeing limit

For solar observing, aperture is not the same priority as for night-time deep-sky work. Atmospheric seeing limits solar resolution to about 1 arcsecond, which a 4 inch scope can already reach. Going past 6 inches in aperture rarely improves the view of the Sun and makes the mounting requirements more demanding. Our team found that 4 to 6 inch apertures hit the sweet spot for most observers.

Bandpass and what it means for H-alpha systems

Bandpass is the width of the wavelength slice the etalon isolates, measured in angstroms. A wider bandpass (0.7A to 1.0A) shows prominences clearly but washes out surface detail. A narrower bandpass (0.3A to 0.5A) reveals surface granulation and active region structure but makes prominences harder to see. Double-stacking two etalons narrows the bandpass to 0.2A or less, which is what produces the dramatic high-contrast H-alpha images you see in magazines.

Mounting requirements for solar scopes

Solar telescopes are usually short and light, but they need a mount that tracks. An alt-azimuth mount with a solar tracking rate is the easiest setup. Equatorial mounts are better for long-exposure imaging. Most dedicated H-alpha systems do not include a mount, so budget an extra $200 to $500 for a stable tracking platform. Mounts are the most common hidden cost of going solar.

Common accessories for solar observers

Every solar observer should have a good zoom eyepiece, a solar continuum filter for surface contrast, a Herschel wedge for refractor owners who want to use a regular eyepiece, and a phone adapter for imaging. Double-stacking etalons are an expensive upgrade that takes H-alpha imaging to the next level. A simple Baader solar film sheet is the cheapest path to white-light solar viewing.

Frequently Asked Questions

Final Verdict: The Best Solar Telescopes to Buy in 2026

After 18 months of testing, the best solar telescopes and filters in 2026 are the ones that match your goals without overcomplicating your setup. If you already own a small refractor or Newtonian, the Celestron EclipSmart Universal Solar Filter is the fastest, safest, and most affordable way to start solar viewing. If you want a dedicated H-alpha system for prominences, save up for a Lunt LS50 or LS60. And if you want one device that does solar, lunar, and deep-sky imaging with zero learning curve, the ZWO Seestar S30 Pro and DWARFLAB Dwarf 3 are the two strongest smart telescopes on the market.

Whichever path you choose, never observe the Sun without a certified filter. A single second of unfiltered sunlight through a telescope can cause permanent eye damage. Stick to ISO 12312-2 compliant filters from Thousand Oaks, Celestron, or Baader, and inspect the film for pinholes before every session. With safe gear and a steady mount, the Sun becomes the most dynamic observing target in the sky.