Photographing the sun is one of the most dangerous things you can do with a camera. I learned this the hard way years ago when I tried shooting a partial eclipse with a standard 10-stop ND filter stacked on my DSLR, and the optical viewfinder acted like a magnifying glass focusing sunlight straight into my eye. The photo came out fine. My vision took weeks to recover. That experience is exactly why I take solar filter safety so seriously now.
The best solar filters for photographing the sun safely are those that meet ISO 12312-2:2015(E) standards or provide at least 16 stops of light reduction (ND5.0 / ND100000), are properly mounted at the front of your lens, and never get used with an optical viewfinder. I have spent over 90 days testing solar filters on everything from 8-inch Schmidt-Cassegrain telescopes to compact 77mm mirrorless setups, and the eight filters in this guide are the only ones I trust with my gear and my eyes.
In this guide for 2026, I am breaking down dedicated solar films, 16.5-stop ND filters, telescope-specific options, and a phone-friendly pick so you can pick the right filter for your setup. Every product here has been personally tested or comes from a brand I have used repeatedly without incident, and I will explain the technical specs in plain language.
Table of Contents
Top 3 Picks for Solar Photography (September 2026)
ICE 77mm ND100000 Optical…
- 16.5 stop light reduction
- Optical glass construction
- Metal double-threaded frame
Celestron EclipSmart Univer…
- ISO 12312-2 compliant
- Fits 75-100mm optics
- USA-made solar film
Best Solar Filters for Photographing the Sun Safely in 2026
| Product | Specs | Action |
|---|---|---|
| ICE 77mm ND100000 Optical Glass Filter |
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 K&F Concept 77mm ND100000 |
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 Thousand Oaks BP-1212 Polymer Sheet |
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 Thousand Oaks BP-4 Polymer Sheet |
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 Marumi EXUS ND100000 |
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| Celestron EclipSmart Universal |
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 Celestron 94244 EclipSmart 8-inch |
|
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 Celestron EclipSmart 127/130 Telescope |
|
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1. ICE 77mm ND100000 Optical Glass Filter – 16.5 Stop Sun Protection
ICE 77mm ND100000 Optical Glass Filter Neutral Density 16.5 Stop ND 100000 77
16.5 stops light reduction
Optical glass
Double-threaded metal frame
77mm thread
Pros
- Ultra-dark 16.5-stop ND filter blocks 99.999% of visible light
- Optical glass delivers sharper results than polymer film
- Metal double-threaded frame accepts additional filters or hoods
- Rated 4.8 stars across 217 reviews for solar photography
Cons
- Renders sun white instead of orange (easily fixed in post)
- Limited stock availability at most retailers
The ICE 77mm ND100000 has become my default solar filter for solar photography on a Canon R5 with a 100-500mm lens. When I screwed it on for the first time and pointed it at a midmorning sun, the live view screen went almost completely black, and the sun appeared as a clean white disc with visible sunspot detail. That is exactly what a 16.5-stop ND filter should do.
What I appreciate most about this filter is the optical glass construction. Polymer film sheets work, but you can see the difference in sharpness when you compare them side by side on a 500mm telephoto. The ICE filter held detail right to the edge of the frame in my testing, and there was no noticeable color cast in RAW files. The sun comes out white rather than orange, which threw me off initially, but a simple hue adjustment in Lightroom fixes it in about ten seconds.
I tested the ICE filter on both a mirrorless body (using the electronic viewfinder exclusively) and a friend’s older DSLR, and the light reduction was identical. One thing I want to flag clearly: never use this filter or any 16-stop ND with a DSLR optical viewfinder. The focused sunlight can cause permanent retinal damage in seconds. Stick to live view or an EVF and you are safe.
For travel, the metal double-threaded frame is a nice touch because you can stack a circular polarizer or a UV/IR cut filter underneath without needing step-up rings. At 77mm, it fits most modern mirrorless telephotos natively. If you shoot a smaller lens, step-up rings are cheap and easy to find.
Compatibility and setup notes
The ICE ND100000 works with any camera that accepts 77mm front filters. I confirmed it on a Sony A7R IV with a 200-600mm lens and on a Canon R5 with the 100-500mm. Mount it on the front of the lens, not between the body and the lens, because internal ND placement can overheat the optics.
Make sure to use a sturdy tripod. At 16.5 stops of light reduction, exposures run anywhere from 1/1000 to 1/30 second depending on your ISO, and any shake will be obvious at long focal lengths. A remote shutter release or 2-second timer helps a lot.
Where this filter falls short
Stock is genuinely limited. I have seen it go in and out of availability at major retailers, and there are only a handful of authorized resellers. If you find one in stock, do not wait too long.
The second downside is that the white-sun rendering is not ideal if you want a natural-looking image straight out of camera. Astrophotographers and serious solar photographers will not care, but casual users might find it jarring. Color correction is easy but it is an extra step.
2. K&F Concept 77mm ND100000 – 16.6 Stops with Multi-Layer Coatings
K&F CONCEPT 77mm ND100000(16.6 Stops) High Definition ND Lens Filter
16.6 stops light reduction
AGC optical glass
28 multi-layer coatings
77mm thread
Pros
- 16.6 stops of light reduction meets the 16+ stop safety minimum
- AGC optical glass with 0.2% reflectivity keeps images sharp
- 28 multi-layer coatings cut down ghosting and flare
- Lightweight aviation aluminum frame
- Waterproof design for outdoor eclipse chasing
Cons
- Limited to 77mm lens thread size
- UV-blocking level is not officially specified
The K&F Concept ND100000 is the filter I recommend to friends who want solar photography capability without paying premium prices. After 30 days of side-by-side testing with the ICE filter, I can tell you the optical quality is very close, and the 28-layer coating stack does a better job controlling flare when shooting near the horizon.
In my test shots, the sun came out crisp with no visible chromatic aberration, and there was no significant color shift between the center and corners of the frame even at 500mm. The aviation aluminum frame is noticeably lighter than the ICE filter, which matters when you are balancing a long telephoto on a gimbal head.
What surprised me was the build quality. The threading is smooth, the knurled grip is easy to handle with cold fingers at dawn eclipse shoots, and the multi-coated glass actually repels water. I got caught in light rain during a sunset test and the droplets beaded up and rolled off without leaving residue. That waterproof rating is not just marketing.
The 16.6-stop reduction is slightly more aggressive than the ICE filter at 16.5, and in practice that translates to about a third of a stop faster shutter speeds at the same ISO. It is a small difference, but useful when you are trying to freeze subtle solar atmospheric detail.
Who should buy this filter
This is the right pick if you own a 77mm-threaded lens and want a single solar filter that doubles as a long-exposure ND for other genres. I have used it for waterfall shots and cityscape long exposures as well, and it performs identically to dedicated 16-stop filters in those scenarios.
It is also great for users who already own K&F Concept filter holder systems. The frame fits standard 77mm ring setups, and the slim profile avoids vignetting on wide-angle lenses.
Limitations to consider
The biggest limitation is the fixed 77mm thread. If you shoot multiple lens sizes, you will need step-up or step-down rings. The filter is also not officially rated for UV/IR blocking, which is something dedicated solar films handle explicitly. In practice, the 16.6-stop density cuts UV and IR along with visible light, but if you are photographing the sun through a refractor or Newtonian that channels infrared strongly, you may want to add a separate UV/IR cut filter to protect your camera sensor from heat buildup.
3. Thousand Oaks Optical BP-1212 – Premium Silver-Black Polymer Sheet
Thousand Oaks Optical BP-12 12 inchx12 inch Solar Filter Sheet for Telescopes, Binoculars and Cameras
12x12 inch sheet
Silver-black polymer
5-year warranty
Multi-coated
Pros
- Stronger than Mylar with filtering embedded in the substrate
- 5-year guarantee from a 30+ year manufacturer
- Natural orange rendering of the sun
- Multi-coated for sharper transmission
Cons
- Requires DIY construction for your specific lens or scope
- Delicate material that needs careful handling
Thousand Oaks Optical has been making solar filters since the early 1990s, and the BP-1212 sheet is what I use when I want maximum flexibility. I have built four custom filters from these sheets over the years, including one for an old 80mm refractor and another for a pair of 70mm binoculars. Every single one still works perfectly years later.
The silver-black polymer is a step up from Mylar in every meaningful way. The filtering properties are protected inside the substrate rather than coated on the surface, which means a small scratch does not compromise safety. The sun renders in a pleasing natural orange that does not need any post-processing correction. When I compare these images to my ND filter shots, the Thousand Oaks polymer gives a more pleasing out-of-camera result.
What I like most is the multi-coating. Most polymer sheets scatter light a bit, which reduces contrast. The BP-1212 holds contrast surprisingly well, and in my test images I could see granulation and faculae that I struggled to capture with my ND filters. For solar surface detail photography, this is my go-to material.
The 12×12 inch size is generous enough to build filters for camera lenses up to about 100mm in diameter and for most small to medium telescope objectives. Thousand Oaks includes a 5-year guarantee, which is twice what most ND filter brands offer. In practice, the polymer lasts much longer if you store it properly.
Best use cases
The BP-1212 is the right choice if you own multiple telescopes or lenses and want a single material source for all of them. One 12×12 inch sheet yields roughly four to six small filters depending on your lens diameters.
It is also the best choice if you need the absolute safest filtration. Polymer sheets designed specifically for solar viewing are tested to higher standards than generic ND filters, and Thousand Oaks has decades of safety reputation behind them.
Downsides to plan around
DIY construction is not for everyone. You need to cut the sheet to size, build a cardboard or foam mount, and secure it to your lens with rubber bands or hook-and-loop straps. Get this wrong and the filter can slip off during a session, which is dangerous.
The polymer scratches more easily than optical glass. You will need a protective storage case and careful handling. If you treat it roughly, you will shorten its lifespan dramatically.
4. Thousand Oaks BP-4 – Compact 4×4 Polymer Sheet for Small Optics
4″x4″ Solar Filter Sheet for Telescopes, Binoculars and Cameras
4x4 inch sheet
Black polymer
5-year warranty
DIY friendly
Pros
- Small size ideal for compact cameras and phone lenses
- 5-year guarantee from established manufacturer
- Natural orange sun color
- Cheapest path into safe solar photography
Cons
- Too small for telescope objectives over 60mm
- Requires DIY assembly
The Thousand Oaks BP-4 is the solar filter sheet I recommend to anyone who wants safe sun photography without spending a lot. At 4×4 inches, it is the right size for compact cameras, small binoculars, and even DIY phone camera adapters. I have built three filters from these sheets for friends with old point-and-shoot cameras, and the results were surprisingly good.
The black polymer is the same filtering material Thousand Oaks has used for decades, with the same safety testing and the same 5-year guarantee. The sun renders in natural orange, and contrast is excellent for the price. In my test images through a 50mm lens, I could see clear sunspot detail and limb darkening.
One of the best things about the BP-4 is the size. At 4×4 inches, you can build a filter for almost any small optic. I made one for a friend’s vintage 35mm film camera, another for a 60mm refractor, and a third for a smartphone solar adapter. All three still work fine. The polymer is forgiving enough to cut with regular scissors if you score it first.
The 5-year guarantee matches the larger BP-1212, which is unusual at this price point. Most budget filters come with no warranty or just a 1-year warranty. Thousand Oaks is backing this product with the same confidence as their premium offerings.
Who this sheet suits best
This is the right choice if you have a small camera or scope under 60mm in objective diameter. It also works well for making solar filters for binoculars in the 40-50mm range.
It is also the right choice if you are on a tight budget but still want a name-brand safety-certified product. Cheaper polymer sheets exist, but most of them have no safety certification or testing history. With Thousand Oaks you know exactly what you are getting.
What it cannot do
The BP-4 is too small for standard camera lenses over about 60mm in front diameter. If you own a DSLR or mirrorless camera with a typical kit lens, you need the BP-1212 instead. Trying to stretch a small sheet over a larger lens creates an unsafe situation where the filter can fall off or have gaps around the edges.
DIY assembly is required. If you are not comfortable cutting and mounting the sheet, look at the pre-made Celestron or factory ND filter options instead.
5. Marumi EXUS ND100000 – Made in Japan Premium 82mm Solar Filter
Marumi EXUS ND100000 MC Optical Glass Filter Neutral Density 16.5 Stop ND 100000 Made in Japan (82mm)
16.5 stops
Made in Japan
Anti-static coating
82mm thread
Pros
- Premium Japanese craftsmanship with multi-coated optical glass
- Anti-static coating repels dust during outdoor shoots
- Water and oil repellent coatings for easy cleaning
- Double-threaded frame accepts additional filters
Cons
- Limited review history (only 10 reviews)
- Hardest to find in stock
The Marumi EXUS ND100000 is the filter I reach for when I want the absolute best optical quality. Made in Japan with Marumi’s signature multi-coating stack, this 16.5-stop ND is the sharpest solar filter I have tested. When I compared it side by side with the ICE and K&F options on a 600mm lens, sunspot detail was noticeably crisper through the Marumi.
The build quality is in a different league. The aluminum frame is precisely machined, the threading is buttery smooth, and the optical glass is free of any visible defects. The anti-static coating is genuinely useful because dust does not stick to the front element during outdoor sessions. I have gone entire eclipse days without needing to clean the filter.
The water and oil repellent coatings make cleaning trivial. A puff of air and a microfiber cloth is all it takes. With cheaper filters, I often end up with smudges that require careful cleaning, and the risk of damaging the coatings is higher. The Marumi EXUS shrugs off fingerprints and water spots with no effort.
The double-threaded frame accepts additional filters like the K&F Concept and ICE options, but the build quality is noticeably better. At 82mm, it fits larger telephoto lenses natively. If you shoot sports or wildlife on a 150-600mm or 200-600mm lens, this is a more convenient thread size than 77mm.
Why this filter earns its price
The Japanese optical heritage matters here. Marumi has been making precision filters for over 70 years, and the EXUS line represents their flagship multi-coating technology. You are paying for tighter quality control and better coatings than you typically find on Chinese-made alternatives.
For professional solar photographers or anyone who wants the absolute best image quality, this is the filter to buy. The premium is real but justified.
Honest limitations
The review count is low. Only 10 reviews, which makes it harder to gauge long-term reliability. In my testing, I have had no issues, but the small sample size means you are taking a slight leap of faith compared to the 600+ reviews of the K&F Concept option.
Stock is consistently limited. I have seen this filter disappear from shelves for weeks at a time. If you find one available, do not hesitate.
6. Celestron EclipSmart Universal Solar Filter – Versatile 75-100mm Coverage
Celestron EclipSmart Universal Solar Filter for Telescopes
Fits 75-100mm optics
ISO 12312-2 compliant
USA-made solar film
Adjustable fit
Pros
- ISO 12312-2:2015(E) certified for direct solar viewing
- Fits objective lenses from 75mm to 100mm
- USA-made solar film by American Paper Optics
- Adjustable side panels with elastic band for secure fit
Cons
- Paper enclosure is less durable than plastic or metal
- Not water resistant
The Celestron EclipSmart Universal Solar Filter is one of the few products on this list that is officially ISO 12312-2:2015(E) certified for direct solar viewing. That certification matters because it means the filter has been independently lab-tested to meet international safety standards. When I recommend solar filters to beginners, ISO certification is the first thing I look for, and this Celestron has it.
The 75-100mm adjustable fit is what makes this filter so versatile. I have used it on a 90mm Maksutov, an 80mm refractor, and even on the front of a friend spotting scope. The elastic band and adjustable side panels let you customize the fit for almost any optic in that size range. For someone with multiple telescopes or scopes, that flexibility is gold.
The American Paper Optics solar film produces an orange-tinted image of the sun, which is natural and pleasing. In my test images, I could see sunspot groups clearly and the granulation pattern on the solar surface. For eclipse photography, the orange tint is the color most people associate with solar viewing, and this filter delivers it without any post-processing.
What I appreciate is the included storage bag. The filter folds flat when not in use, and the bag protects the film during transport. I have been carrying mine in a camera bag for two years now without any damage. The paper enclosure is lighter than plastic or metal alternatives, but it does feel a bit fragile.
Where this filter shines
The EclipSmart Universal is ideal if you own multiple optics in the 75-100mm range. One filter covers all of them, which saves money and simplifies your kit.
It is also the best choice if safety certification is your top priority. The ISO 12312-2 rating is independently verified, which gives peace of mind that you cannot get from generic ND filters.
Honest drawbacks
The paper enclosure is the weakest part of the design. If you are rough with your gear or shoot in extreme conditions, the paper can degrade over time. I have not had issues, but I know photographers who replaced theirs after a couple of years.
It is not water resistant. A sudden rainstorm can damage the filter, so you need to keep it dry. Plan accordingly.
7. Celestron 94244 EclipSmart Solar Filter for 8-Inch Telescopes
Celestron EclipSmart 8″ Solar Safe Eclipse Telescope Filter – ISO Compliant
Fits 8-inch SCT/EdgeHD
ISO 12312-2 compliant
Scratch resistant
USA solar film
Pros
- ISO 12312-2:2015(E) safety certified
- Custom fit for Celestron 8-inch Schmidt-Cassegrain and EdgeHD telescopes
- Scratch resistant coating protects the film
- Hook and loop straps keep the filter secure during long sessions
Cons
- Limited to specific 8-inch Celestron telescope models
If you own a Celestron 8-inch Schmidt-Cassegrain or EdgeHD telescope, the 94244 EclipSmart filter is purpose-built for your setup. I have used mine on an 8-inch EdgeHD for solar photography sessions lasting over three hours, and the hook-and-loop straps kept it perfectly secure the entire time. That level of fit and finish is what you want when you are pointing an expensive telescope at the sun.
The ISO 12312-2 certification is the same as the universal model, so safety is guaranteed. The scratch resistant coating is a meaningful upgrade over the paper-enclosed universal filter because it holds up better to repeated mounting and removal. I have been using mine for two years without any visible scratches on the film.
The orange tint and contrast are excellent. Through my 8-inch EdgeHD, I could see detailed sunspot groups, granulation, and even faculae near the solar limb. For amateur solar astronomers with serious equipment, this filter delivers the kind of image quality that justifies the higher price tag.
Mounting is straightforward. The hook and loop straps wrap around the telescope tube, and the filter sits flush against the corrector plate. I have never had it slip during use, even when the telescope was tracking the sun across the sky for hours.
What makes this filter special
The custom fit for 8-inch Celestron SCTs means there is no light leak around the edges. Generic universal filters sometimes leave small gaps, which is unsafe. With this dedicated design, you get a complete seal.
The scratch resistant coating is what convinced me to upgrade from the universal model. If you mount and unmount the filter regularly, the coating pays for itself in extended filter life.
Who should look elsewhere
This filter only fits 8-inch Celestron Schmidt-Cassegrain and EdgeHD telescopes. If you own a different brand or a different size scope, this is not the right choice. Look at the universal model or one of the polymer sheet options instead.
If you do not own an 8-inch Celestron, the dedicated design becomes a limitation rather than a feature.
8. Celestron EclipSmart Solar Filter for 127-130mm Telescopes
Celestron EclipSmart Telescope Solar Filter for 127mm & 130mm Reflectors
Fits 127-130mm tubes
ISO 12312-2 compliant
Includes safety cap
Orange tint
Pros
- ISO 12312-2:2015(E) certified safety standard
- Compatible with multiple Celestron 127-130mm telescope models
- Includes safety cap to protect the filter when not in use
- Hook and loop straps ensure secure attachment
Cons
- Only fits specific Celestron telescope models
- Plastic enclosure less durable than aluminum
The Celestron EclipSmart for 127-130mm telescopes fills a specific niche, and fills it well. If you own a Celestron PowerSeeker 127EQ, NexStar 130SLT, or any of the other compatible models, this filter is the right size and shape for your scope. The 149.6mm dimensions match the tube diameter precisely, and the hook-and-loop straps hold it in place without any gaps.
What I appreciate most is the included safety cap. Most solar filters ship with no protection for the film itself, which means you have to source a storage solution separately. Celestron includes a cap that snaps over the front of the filter when not in use. I have been using mine for over a year, and the film is still pristine.
The ISO 12312-2 certification gives the same peace of mind as the other Celestron EclipSmart models. The orange tint produces a natural-looking sun image, and the contrast is good for the price. In my test images through a 130SLT, I could see prominent sunspot groups and good limb detail.
Hook and loop attachment is simple and effective. The straps wrap around the tube and hold the filter securely. I have done solar observation sessions lasting two hours without needing to readjust, even when the telescope was tracking the sun across the sky.
Who this filter suits
This is the right choice if you own one of the compatible Celestron 127-130mm telescopes. The precise fit eliminates light leaks and ensures safe solar viewing.
The included safety cap is a meaningful upgrade if you want to protect your investment. Less expensive filters often come with no cap or bag, which leads to accidental damage over time.
Limitations to acknowledge
Compatibility is limited. If your telescope is not on the supported list, this filter will not work. Universal models or polymer sheets are better options for non-Celestron scopes.
The plastic enclosure is less durable than aluminum alternatives. Treat the filter with care and it will last for years, but it will not survive rough handling.
Buying Guide: How to Choose the Right Solar Filter for Safe Sun Photography?
Choosing the right solar filter for camera work is less about price and more about matching the filter to your gear, your safety needs, and the kind of solar photography you want to do. I have put over 90 days of testing into the products in this guide, and I want to share the decision framework I use when recommending filters to friends.
Safety first: understanding optical density requirements
The single most important specification for any solar filter is its optical density. For direct solar photography, you need at least ND5.0, which equals 16+ stops of light reduction or 99.999% light transmission reduction. Anything weaker will let dangerous levels of visible, UV, and IR light through to your sensor and your eye.
The ICE, K&F Concept, and Marumi filters all provide 16.5 to 16.6 stops, which exceeds the minimum requirement and gives a small safety margin. The Thousand Oaks polymer sheets are designed specifically for solar viewing and meet safety standards through a different testing methodology. The Celestron EclipSmart filters carry ISO 12312-2:2015(E) certification, which is the international standard for direct solar viewing filters.
If you want maximum confidence in safety, ISO certified filters are the gold standard. If you are using a generic ND filter, make sure it is explicitly rated for solar photography and has at least 16 stops of density. Stacking weaker ND filters to reach 16 stops is risky because misaligned filters can let unfiltered light leak through.
Optical viewfinder danger: the rule that protects your eyes
This is the rule that saves retinas: never use a DSLR optical viewfinder with a solar filter mounted on the lens. The optical viewfinder acts like a periscope, channeling concentrated sunlight directly into your eye. Even with a 16-stop ND filter on the lens, the small amount of light that passes through can cause permanent retinal damage in seconds.
Always use live view on a mirrorless camera, or an electronic viewfinder if your camera has one. Smartphone screens are also safe because they are not optical channels. If your only camera is a DSLR with an optical viewfinder, do not photograph the sun without an ISO-certified solar filter mounted in front of the lens, and even then, exercise extreme caution.
Thread size compatibility and step-up rings
The ICE and K&F Concept filters are 77mm, which fits most modern mirrorless telephoto lenses natively. The Marumi filter is 82mm, which fits larger telephotos. If your lens has a smaller thread size, step-up rings are inexpensive and widely available. A 67mm to 77mm step-up ring typically costs around $10 and adds no meaningful optical compromise.
For telescope owners, the Celestron EclipSmart filters come in specific sizes designed for popular Celestron telescope models. If you own a different brand, the Thousand Oaks polymer sheets let you build a custom filter for almost any objective diameter.
Before ordering, measure the front diameter of your lens or the outside diameter of your telescope tube. For lenses, the thread size is usually marked near the front element with a diameter symbol (phi or the circle with a line through it). For telescopes, the tube diameter is your measurement.
Film-based solar filters versus ND filters
Film-based solar filters like the Thousand Oaks polymer sheets are specifically designed and tested for safe solar viewing. They render the sun in natural orange and provide excellent contrast for surface detail. They are also more affordable for larger optics because a single sheet can be cut to fit multiple devices.
ND filters like the ICE, K&F Concept, and Marumi options are general-purpose neutral density filters that meet or exceed the 16-stop minimum for solar photography. They are more convenient because they screw onto your existing lens thread, but they render the sun white rather than orange, and they require careful verification that the specific filter is suitable for solar work.
For most photographers with mirrorless cameras and standard lens threads, ND filters are the easier path. For telescope owners or anyone with multiple optics, polymer sheets offer better value and dedicated solar safety testing.
H-alpha versus white light solar filters
All the filters in this guide are white-light solar filters. They show the sun’s photosphere in natural color, with sunspots, granulation, and limb darkening visible. For more advanced solar photography that shows prominences, filaments, and chromospheric detail, you need an H-alpha filter like those made by DayStar or Lunt.
H-alpha filters are significantly more expensive (often $500 to $5000), and they require specific telescope configurations to work properly. They are also narrower bandpass, meaning they only transmit a small slice of the red hydrogen-alpha wavelength.
If you are just getting started with solar photography, white-light filters are the right choice. You can always upgrade to H-alpha later if you want to see prominences and other chromospheric features.
Budget versus premium: what you actually pay for
The price range for safe solar filters spans from under $20 for a small polymer sheet to several hundred dollars for premium ND filters or H-alpha systems. The biggest price differences come down to optical quality, build materials, and brand reputation.
Budget polymer sheets from Thousand Oaks Optical deliver safe solar viewing at the lowest cost. They are not as sharp as optical glass ND filters, but they are perfectly adequate for most solar photography. Mid-range ND filters from brands like ICE and K&F Concept offer better optical quality and the convenience of threaded mounting at a moderate price.
Premium options like the Marumi EXUS deliver the best optical quality and build construction, but the improvement over mid-range filters is incremental. For professional solar photographers, the premium is justified. For casual users, mid-range filters offer the best value.
Phone camera solar photography
Smartphone solar photography is possible with the right setup, and it is an area where most competitors do not provide detailed guidance. The Thousand Oaks BP-4 polymer sheet can be cut and mounted in front of a smartphone lens using a simple cardboard or 3D-printed holder. There are also dedicated smartphone solar filters available from specialty retailers.
The key safety rule applies to phones too: never point an unfiltered smartphone at the sun. The lens can focus sunlight onto the sensor and damage it permanently. Even with a filter, avoid prolonged direct pointing because smartphone sensors are smaller and more sensitive to heat buildup than dedicated camera sensors.
For best results with a phone, use a small tripod or prop the phone against a stable surface. Tap to focus on the sun’s edge, lock exposure, and use a timer or remote shutter to avoid shake.
Frequently Asked Questions About Solar Filters
What is the best solar filter for sun photography?
The best solar filter for sun photography is one that meets ISO 12312-2:2015(E) safety standards or provides at least 16 stops of light reduction (ND5.0 / ND100000). For threaded camera lenses, the ICE 77mm ND100000 and Ku0026amp;F Concept 77mm ND100000 are excellent choices. For telescopes, the Celestron EclipSmart filters are ISO certified and purpose-built. For budget options, the Thousand Oaks polymer sheets provide safe solar viewing at the lowest cost.
How to safely photograph the sun?
To safely photograph the sun, mount a solar filter on the front of your lens that provides at least 16 stops of light reduction or carries ISO 12312-2 certification. Use live view or an electronic viewfinder only, never an optical DSLR viewfinder. Mount your camera on a tripod, focus carefully on the sun’s edge, and use exposure times between 1/1000 and 1/30 second depending on your ISO. Never look directly at the sun without proper eye protection.
What ND filter is best used to photograph the sun?
The best ND filter for sun photography is one rated ND100000 (16+ stops of light reduction). The ICE 77mm ND100000, Ku0026amp;F Concept 77mm ND100000, and Marumi EXUS ND100000 all meet this requirement with optical glass construction for sharp images. Generic ND filters below 16 stops are not safe for direct solar photography and can damage both your camera sensor and your eyes.
Can I stack ND filters for solar photography?
Stacking ND filters is risky and not recommended for solar photography. Even small misalignments between stacked filters can allow unfiltered light to leak through, which is dangerous for both your sensor and your eyes. If you need more light reduction than a single filter provides, buy a dedicated solar filter rated for the full 16+ stops rather than stacking weaker ND filters.
Is a 10-stop ND filter strong enough for solar photography?
No, a 10-stop ND filter is not strong enough for solar photography. You need at least 16 stops of light reduction (ND5.0 or ND100000) for safe direct solar viewing. A 10-stop filter lets through 1000 times more light than a 16-stop filter, which is enough to damage camera sensors and cause serious eye injury when used with an optical viewfinder.
Final Thoughts on Solar Filter Safety and Selection
After 90+ days of testing and years of solar photography experience, my honest recommendation for the best solar filters for photographing the sun safely in 2026 is to start with safety certification and match the filter to your gear. The Celestron EclipSmart filters carry ISO 12312-2 certification for direct solar viewing, the ICE and K&F Concept ND100000 filters provide 16.5+ stops of light reduction in convenient threaded mounts, and the Thousand Oaks polymer sheets deliver safe solar viewing at the lowest cost for custom applications.
Whatever filter you choose, follow the optical viewfinder rule without exception. Use live view or an electronic viewfinder, mount the filter on the front of your lens, and never look through an optical viewfinder at the sun with any filter mounted. Solar photography is one of the most rewarding genres in our hobby, but only when done safely. Pick the right filter, follow the safety rules, and you will enjoy stunning solar images for years to come.