The Tool Desk
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This guide focuses on what solar filters are recommended for taking eclipse photos with phones, how to mount them safely, and how to set up your iPhone or Android camera so you get sharp results instead of a dim, overexposed blob.
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Use the same rule whether you’re planning a quick photo at 9:15 AM local time or running a full-time capture session: only use certified solar filters made for direct solar viewing/imaging, and verify your mounting can’t slip.
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Why solar filters matter for phone eclipse photos
Phone lenses concentrate sunlight onto a tiny sensor area. Even if the Sun looks “small,” the energy per square millimeter is extreme.
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- Black polymer is the most common filtering material for observing sunspots and granulation, through telescopes and binoculars.
- These sheets are a quality product of Thousand Oaks Optical, Arizona, a manufacturer of safe solar filters for over 30 years. "Stronger than Mylar with the filtering properties protected within the substrate. Guaranteed five years."
- Make a filter on your own for any telescope / binoculars / camera, and for a fraction of what factory made filters cost.
- The sun will appear in a natural orange color when viewed through your telescope using this filter.
- WARNING: ALWAYS MAKE SURE THE FILTER IS WELL ATTACHED TO THE TELESCOPE/BINOCULARS, USING STICKY TAPE, TO KEEP IT FROM FALLING WHILE OBSERVING!
A proper solar filter reduces the Sun’s brightness to a safe level for both eyes and cameras. It also improves image quality by cutting harmful infrared/ultraviolet components and keeping exposure in a range your phone can handle.
Know what you’re photographing: eclipse phases and risk
During a solar eclipse, the Sun’s apparent brightness changes and the surrounding sky darkens. That can tempt people to remove filters “because it’s darker now.” Don’t do that.
For imaging the Sun (even during partial phases), you still need a proper solar filter until totality (when the direct Sun is blocked along your line of sight). If you’re not 100% sure of your exact visibility timing/location, keep the filter on for imaging and consult local eclipse resources for phase timing.
Which solar filter to use (recommended options)
Look for filters that are explicitly certified for solar viewing and designed for direct Sun use. For photography with phones, you’re essentially adapting a viewing filter to a camera lens.
Certified solar viewers (proper viewing filter)
Solar eclipse glasses that are certified for direct viewing can be used as a filter material (not for eye viewing after you cut them, but as a film source).
Choose viewers that meet recognized safety standards and are labeled for solar observation. Use the film as the lens filter layer only if you can mount it flat and securely without wrinkles or gaps.
Camera adapters with certified solar film
The most reliable path is a phone or camera mounting adapter that already uses certified solar film. These kits are designed to align the film with the lens and reduce edge leaks.
Look for kits that specify solar film certification and are meant for direct solar photography. They usually include a rigid frame, which helps prevent the film from shifting mid-burst.
Dedicated eclipse phone filter kits
Some manufacturers sell eclipse kits targeted at phone lenses with a clamp or case system. The value is mechanical alignment: less chance of light leaks and fewer autofocus/edge artifacts.
Even if you’re experienced, prefer a kit designed for your phone model (or at least your lens layout) so the filter covers the entire optical path.
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- [ALILUSSO Imaging Filter] The Filter for smartphones allows you to capture events safely and in clear detail. Whether it's the partial phases, the breathtaking diamond ring effect, or the ethereal corona during totality, our filter is designed to help you capture each stage effectively.
- [Protect your smartphone camera] We prioritize your safety while photographing the sun. The ALILUSSO Smartphone Photo Filter is a imaging filter that protects your smartphone camera from harmful rays, so you can focus on capturing the event's wonder without worry.
- [How to Use the Filter] Step 1: Place the filter over your smartphone's camera lens. Pro Tip: for best results remove your phone case. Step 2: Locate the sun in the frame, zoom in, and steady your hands. Step 3: Tap on the sun on your screen to lock focus and exposure. Step 4: Use your phone's camera settings to reduce the exposure. Then, take the picture.
- Create memories that last a lifetime and share the wonder of events with friends and family. The ALILUSSO Smartphone Photo Filter's high-quality film allows you to showcase your event photos with pride and awe.
- [WARNING] This is a smartphone filter only. Not for direct eye viewing. Looking directly at the sun, even through this filter, can cause permanent blindness and eye damage. For use by persons ages 18 and older only.
DIY film kits (when you can’t buy a kit)
A DIY approach can work, but it’s easy to do wrong. Only consider DIY if you already have certified solar viewer film and a way to mount it in a rigid, flat holder.
Use a rigid ring or lens cap adapter, ensure the film is taut (no wrinkles), and double-check that nothing protrudes into the optical path.
What NOT to use (unsafe or disappointing results)
These are common “fails” because they either don’t block enough harmful light or they create poor images (vignetting, color casts, blur).
- Regular sunglasses (including dark ones): not safe for direct solar viewing/imaging.
- ND filters of unknown strength: most won’t provide solar safety and may still allow damaging energy.
- Smoked glass / welding glass without certification: only certified optics are reliable.
- Uncertified “solar photography” film from unknown sources: certification matters.
- Household materials like CDs/DVDs, CDs as filters, or improvised screens: never trust them for solar imaging.
- Leaving the filter off during partial phases: brightness changes are not safety proof.
How to mount a solar filter on a phone camera
Mounting is where most phone eclipse photos go from “possible” to “why is it blurry?” The filter must cover the lens fully and stay fixed while your phone exposure and focus lock.
Vignetting and edge leaks: the two biggest image problems
Vignetting happens when the filter opening is smaller than the lens’ optical view. Edge leaks happen when light passes around the filter edges.
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Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallPractical rule: the filter should be larger than the phone’s lens view, with a snug, opaque rim that blocks side light.
Dust, scratches, and refocusing triggers
Solar images reveal every dust mote and scratch. Use a blower first, then a gentle microfiber wipe if needed.
After mounting, avoid bumping the phone. Many camera apps will refocus when the scene changes or when you tap—triggering blur in the middle of an important moment.
How to test your setup before totality
- Point at the Sun using proper safety eye protection (or use a camera live view with the filter in place).
- Take a short exposure test (not a long video yet).
- Check for a crisp solar disk with no major edge flare or “white corners.”
- If it looks like a bright blob, stop and fix alignment before the peak moment.
Phone camera settings that usually work
Exact numbers vary by phone sensor, filter density, and daylight conditions. That said, you can start with repeatable ranges and then fine-tune.
Exposure: why you’ll likely need manual control
Many phone cameras fight you by changing exposure mid-burst. Manual or “Pro” modes reduce that randomness.
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- Silver-black polymer is the most common filtering material for observing sunspots and granulation, through telescopes and binoculars
- Make a filter on your own for any telescope / binoculars / camera, and for a fraction of what factory made filters cost.
- The sun will appear in a natural orange color when viewed through your telescope using this filter.
- WARNING: ALWAYS MAKE SURE THE FILTER IS WELL ATTACHED TO THE TELESCOPE/BINOCULARS, USING STICKY TAPE, TO KEEP IT FROM FALLING WHILE OBSERVING.
- Target a bright-but-not-white solar disk.
- If you see a blown-out white center with no detail, reduce exposure (lower ISO and/or faster shutter).
- If the disk is barely visible, increase exposure within safe limits for the filter and optics.
Focus: lock it so it doesn’t hunt
Tap-to-focus is fine for framing, but once focus locks, don’t keep tapping.
- Use manual focus if your app supports it.
- If your app has “AE/AF lock,” use it after you get sharp detail.
Stabilization: keep it boring
Use a tripod or at least a rigid mount. Handheld solar shots will show micro-jitter, especially at longer zoom settings.
If your phone has optical image stabilization (OIS), don’t assume it will fix everything. A stable mount still matters.
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Recommended iPhone and iPad workflow (Direct solar imaging)
Apple hardware is capable, but auto exposure and auto focus can ruin an eclipse sequence. The best results come from locking exposure and focus and keeping the lens and filter alignment stable.
iPhone/iPad: use a solar filter with Manual/Pro controls
Use a Pro camera app if the stock Camera app won’t give you enough control. In general, you want exposure and focus locked for consistent frames during bursts.
- Attach the certified solar filter using a rigid adapter so it fully covers the lens view.
- Open your camera app. Prefer Pro/Manual controls (some apps show separate sliders for shutter speed and ISO).
- Set shutter speed fast enough to avoid clipping (often in the range of
1/250to1/4000, depending on your filter and zoom). - Set ISO low to moderate (often
ISO 25toISO 200to start). If your photo is too dim, adjust ISO before going too slow on shutter. - Zoom moderately. If you use digital zoom, switch back to a smaller zoom once focus is locked to reduce softness.
- Tap the Sun to focus, then enable AE/AF lock if available.
- Start a short burst or short clip and review one frame at 100% zoom.
If the solar disk is soft, reduce zoom, re-lock focus, and re-shoot. Don’t change the filter mid-sequence.
Recommended Android workflow (Direct solar imaging)
Android phones vary widely in camera control. The key is whether you can set shutter speed and ISO and whether your app supports focus/exposure lock.
Android: use Pro mode or a manual camera app
- Mount a certified solar filter securely over the camera lens (rigid adapter preferred).
- Open the native Camera app and switch to Pro mode (or install a Pro camera app if needed).
- Set shutter speed to a fast value (commonly
1/250to1/2000initially; adjust after test shots). - Set ISO low (commonly
ISO 50toISO 200as a starting range). - Set focus mode to AF-S and tap to focus on the solar disk, then lock focus if the UI supports it.
- Use burst or record a short video with locked settings (where supported).
- Review the result on-screen. Check for a crisp, circular disk and avoid clipped highlights.
If the image never sharpens, your phone may be struggling to focus through the filter. Try reducing zoom and increasing distance to the Sun by reframing with less magnification.
Capture strategy: single shot vs burst vs video
For eclipses, consistency wins. Even with a perfect filter, atmospheric turbulence (seeing) will change detail frame to frame.
- Single shot: good for quick documentation, less reliable for sharp texture.
- Burst: better chance to capture a crisp moment. Shoot 5–20 seconds per phase change.
- Video: creates many frames you can later extract. Keep settings locked to avoid exposure pumping.
After you capture, pick the sharpest frames. Don’t rely on the first preview thumbnail.
Rank #4
- Black polymer is the most common filtering material for observing sunspots and granulation, through telescopes and binoculars.
- These sheets are a quality product of Thousand Oaks Optical, Arizona, a manufacturer of safe solar filters for over 30 years. "Stronger than Mylar with the filtering properties protected within the substrate. Guaranteed five years."
- Make a filter on your own for any telescope / binoculars / camera, and for a fraction of what factory made filters cost.
- The sun will appear in a natural orange color when viewed through your telescope using this filter.
- WARNING: ALWAYS MAKE SURE THE FILTER IS WELL ATTACHED TO THE TELESCOPE/BINOCULARS, USING STICKY TAPE, TO KEEP IT FROM FALLING WHILE OBSERVING!
Exposure timing by eclipse phase
Solar filters don’t change your need for exposure control—they change how quickly your camera has to adapt. Here’s a practical timing approach.
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Keep the solar filter on at all times when photographing the Sun. Use locked exposure/focus if you can, because the camera will otherwise “correct” as brightness shifts.
Run short bursts every 30–60 seconds, and one extra burst right before the maximum phase you’ll be watching.
Approaching totality (if applicable in your location)
Brightness changes quickly. If your app supports it, keep manual settings steady and only adjust if the disk becomes clearly underexposed or overexposed.
Continue using the filter for Sun imaging. If you’re also planning to capture the corona effects, that’s a different setup and timing—don’t guess.
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1Clear out junk files and repair common Windows errors2Fix the driver behind crashes, sound loss and screen glitches3Repair Windows errors before they cause bigger problemsTotality and partial again
During totality, direct viewing requirements can differ because the bright photosphere is blocked. However, phone imaging plans should be treated as two separate workflows: “filter on for Sun” and “special timing for totality.”
If you’re not using a dedicated eclipse imaging plan, prioritize safe documentation and avoid risky filter removal. When in doubt, keep the certified filter on and capture what you can.
Troubleshooting when your eclipse photos fail
Most failures are predictable: focus issues, exposure mismatch, filter mounting problems, or camera stabilization fighting you.
Problem: image is too dim
- Verify the filter is not folded/wrinkled in a way that blocks too much.
- Reduce shutter speed slightly (slower) while keeping it fast enough to prevent motion blur.
- Increase ISO modestly before changing anything else.
- Check that you didn’t accidentally use a narrower crop/zoom with an opening mismatch that vignettes the disk.
Problem: image is washed out or blown out
- Reduce ISO first.
- Use a faster shutter speed.
- Make sure the filter is actually certified and installed correctly—an incorrect film can fail this test.
Problem: you can’t focus
- Reduce zoom and refocus on the solar disk.
- Switch focus mode to a more stable mode (AF-S or manual focus in Pro apps).
- Avoid touching the phone after locking focus.
- If your lens can’t focus through the filter, try a different lens (e.g., wide vs tele) and frame similarly.
Problem: rings, streaks, or edge artifacts
- Check for light leaks around the filter rim.
- Inspect the filter for scratches or dust concentrated at edges.
- Make sure the filter surface is flat and centered, not tilted.
Problem: filter fogs or gathers condensation
- Bring the filter to ambient temperature before shooting.
- Use a rigid mount to prevent airflow from creating a temperature gradient across the film.
- If you see fog forming, pause and let the setup stabilize rather than repeatedly wiping (which can scratch).
Common mistakes and safety checklists
People often focus on camera settings and forget the two foundations: certification and stable mounting.
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Safety checklist for equipment and eyes
- Use a certified solar filter made for direct solar viewing/imaging.
- Never look at the Sun through an unfiltered phone camera or finder.
- Do not assume a darker sky means the Sun is safe to view without a certified filter.
- Keep children and curious bystanders away from the lens/filter area.
- Check that the filter is secure before removing your eye protection.
Photo checklist for the phone
- Filter covers the entire lens optical path with a stable rim.
- Lock exposure and focus if your app supports it.
- Use bursts or short video clips to beat atmospheric turbulence.
- Review frames at 100% zoom and adjust only one variable at a time.
Alternatives if you can’t safely mount a filter
Sometimes you’re stuck with incompatible phone cases, odd lens shapes, or no adapter. There are safer alternatives than improvised filters.
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- SOLAR SAFE TELESCOPE FILTER: Filter conforms to the ISO 12312-2:2015(E) international safety standard for filters directly viewing the Sun. The ideal tool for viewing eclipses, sunspots, or the Sun any day!
- WORKS WITH YOUR EXISTING TELESCOPE, SPOTTING SCOPE, OR DSLR CAMERA: Compatible with objective lenses with an outside diameter of 75mm to 100mm.
- SAFE, SECURE FIT: Adjust the side panels to fit the filter to your telescope or camera and attach the elastic band to secure. When you're done observing, fold the filter flat and store it in the reusable bag.
- SOLAR FILM MADE IN THE USA: Celestron Solar Safe film is produced in the USA by American Paper Optics, one of the suppliers recommended by NASA & the American Astronomical Society for safe solar viewing, & independently tested by a third-party lab.
- GREAT VIEWS AND IMAGES: This filter features an orange tint, producing a natural look perfect for visual observing and capturing images through your telescope, spotting scope, or DSLR camera.
Projection methods with an approved setup
Projection projects the Sun’s image onto a surface using optics. If you have an approved solar projection setup (typically with telescopes), it can create images without putting the phone directly in a high-risk optical beam.
Only use this with equipment designed for safe solar projection and avoid “DIY projection” that lacks safety controls.
Use a telescope/spotting scope system with certified optics
If you already own a telescope setup used for solar viewing with certified solar filters, you can often attach a phone to the eyepiece or use a camera adapter designed for astrophotography.
This is more consistent than trying to improvise a filter around a phone case, but it requires careful alignment and stable mounting.
Why you should avoid “improvised” filters
If the filter isn’t certified, or if it’s mounted with gaps and wrinkles, you get both unsafe conditions and poor images.
A cheap kit that’s certified beats a clever DIY that’s unverified every time.
FAQs about solar filters and phone eclipse photography
Can I use solar eclipse glasses as a filter for my phone camera?
Yes—certified solar viewer film can be used as a lens filter if you mount it flat and securely. Don’t use unverified viewers, and don’t stretch the film so it becomes wrinkled or tilted.
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Yes, when you’re photographing the Sun directly. Partial eclipse phases still include intense sunlight reaching your lens. Only totality changes the equation along the exact path of totality.
What phone setting is most important: ISO, shutter speed, or zoom?
Exposure control (ISO and shutter speed) matters most for a visible, non-clipped solar disk. Zoom affects sharpness and focus stability. If your focus is off, no amount of exposure tweaking helps.
My image shows a bright ring—what does that mean?
It usually indicates vignetting or a light leak around the filter rim. Check that the filter opening matches the lens’ effective view and that the rim fully blocks side light.
Will video be better than photos?
Video is often better for eclipses because you get many frames and can extract the sharpest moments later. It’s only better if you can lock exposure and focus, or at least keep them from changing wildly.
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Bottom Line
For eclipse phone photography, the recommended solar filter is one that’s certified for direct solar viewing (or a purpose-built phone eclipse kit using certified solar film). Mount it rigidly so it can’t shift, lock exposure and focus in your camera app, and shoot bursts to increase your odds of a sharp frame.
If your images are dim, blown out, or blurry, treat it like a checklist problem: verify filter certification and mounting first, then tune shutter/ISO, then fix focus and reduce zoom. That workflow prevents both unsafe improvisation and wasted peak-time footage.
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