Best Solar Eclipse Photo Filter for Safe Viewing and Imaging
Photographing a solar eclipse requires specialized, safe filters to protect your eyes and equipment while capturing stunning images. This guide highlights five top solar eclipse filter options that work with a range of telescopes, binoculars, and cameras. Each product is ISO 12312-2:2015(E) compliant or designed for secure, snug fits to help you observe and photograph solar phenomena confidently. Below, you’ll find concise specs, practical use notes, and a buying guide to compare features like fit type, material, and compatibility.
| Product | Brand | Key Feature |
|---|---|---|
| Celestron EclipSmart Safe Solar Eclipse Telescope Filter | Celestron | ISO 12312-2:2015(E) compliant; fits telescopes, spotting scopes, or DSLRs (75–100 mm dia) |
| Celestron 94243 EclipSmart Solar Eclipse Filter (6” SCT) | Celestron | ISO 12312-2 compliant; secure two-strap fit for 6″ SCTs |
| Thousand Oaks Optical 6″x6″ Solar Filter Sheet | Thousand Oaks Optical | DIY filter sheet; durable polymer substrate; orange sun view |
| Celestron EclipSmart Safe Solar Eclipse Filter (127/130 mm) | Celestron | ISO-compliant; compatible with several 127–130 mm scopes; safety cap |
| Seymour Solar Hyperion Solar Film Sheets | Seymour Solar | ND5 film; high protection; attach to any lens or telescope; DIY use |
Celestron EclipSmart Safe Solar Eclipse Filter
The Celestron EclipSmart Safe Solar Eclipse Filter conforms to ISO 12312-2:2015(E) for direct solar viewing. It is designed to work with your existing telescope, spotting scope, or DSLR camera, accommodating objective lenses from 75 mm to 100 mm in diameter. Fit remains secure with adjustable side panels and an elastic band, and storage is convenient thanks to a fold-flat design and a reusable bag.
Compatibility extends to a variety of setups, making it a versatile choice for solar observers who also want to document solar activity with a camera. When not in use, the filter packs away neatly, reducing the risk of damage or misplacement during a busy observing session.
Celestron 94243 EclipSmart Solar Eclipse Filter
This filter is ISO 12312-2 compliant and is designed for Celestron 6” Schmidt-Cassegrain telescopes. It features a secure, snug fit with two hook-and-loop straps to maintain proper positioning on the telescope’s objective. The filter’s construction is aimed at stable, eclipse-ready viewing, with a robust attachment method to minimize drift during celestial events.
Users benefit from a simple installation process and reliable protection during totality and partial phases. The 6” SCT compatibility makes it a strong option for hobbyists who own or plan to use a classic mid-size SCT telescope for solar observation and photography.
Thousand Oaks Optical 6″x6″ Solar Filter Sheet
The 6″x6″ solar filter sheet uses a silver-black polymer that is commonly used for solar observing of sunspots and granulation. It supports DIY filter projects for a wide range of telescopes, binoculars, and cameras, at a fraction of factory-made costs. The Sun’s appearance tends to a natural orange color through this material, which helps observers gauge surface details with reduced brightness and glare.
The sheet’s long-standing reputation from Thousand Oaks Optical—an established name in solar filtration—emphasizes safety and cost efficiency. For builders who want to customize a filter for an unconventional instrument, this sheet offers practical flexibility with a multi-application design.
Celestron EclipSmart Safe Solar Filter for 70mm Telescopes
This filter is compatible with Celestron AstroMaster 70AZ/EQ and AstroMaster LT 70AZ models. It uses three safety screws to secure the objective and includes a protective cap for the filter surface when not in use. The ISO-compliant solar safety film promises reliable protection for direct solar viewing, making it a practical option for small-aperture instruments used by beginners and students.
With a snug fit and durable fasteners, this option is well-suited for portable setups or field viewing where quick assembly and reliable safety are priorities. Small telescopes are common in educational environments, and this filter supports safe, on-site solar observation without compromising image quality.
Seymour Solar Hyperion Solar Film Sheets
Hyperion Solar Film sheets reduce the Sun’s brightness by a factor of 99.999%, enabling clear imaging of the Sun’s surface and sunspots in white light. The film is designed to meet ISO 12312-2 international standards for solar viewing and can be attached to most telescopes, binoculars, or camera lenses with a secure fit. It also supports DIY filters, allowing observers to craft custom solar filters using high-quality film sheets.
This option provides a broad compatibility profile for photographers who want flexibility, whether shooting with a DSLR, a mirrorless camera, or a long-focus telescope. The high attenuation helps preserve detector dynamic range for solar imaging while protecting eyes and sensors from excessive solar intensity.
Buying Guide: Key Purchase Considerations
- Safety standards and certification: Ensure filters comply with ISO 12312-2:2015(E) for direct solar viewing. This reduces the risk of eye injury and sensor damage during bright solar events.
- Compatibility and fit: Check telescope aperture and mounting type. Some filters are designed for specific diameters (e.g., 6″, 70 mm, 75–100 mm ranges) or mount types. A snug, secure fit minimizes drift during the eclipse.
- Material and construction: Filters use different materials (solar film, polymer substrates). Film-based options may be DIY-friendly, but require careful handling to avoid damage or imperfections.
- Ease of use and portability: Fold-flat or compact filters are beneficial for field observing. Quick-release or secure-strap designs save setup time during fleeting eclipse phases.
- Imaging versatility: If you plan to photograph, consider filters that are compatible with DSLR/mirrorless cameras and provide adequate attenuation without compromising image quality.
- Durability and storage: Reusable bags, protective caps, and robust edges reduce wear. Durable filters are preferred for frequent use in variable field conditions.
- DIY options vs. ready-made filters: DIY film sheets offer cost savings and customization but require precise handling and safe mounting. Ready-made filters provide convenience and consistent optical performance.
When choosing a solar eclipse filter, balance safety with imaging goals. For beginners, a ready-made ISO-compliant filter with secure mounting and broad telescope compatibility offers a straightforward path to safe viewing and introductory photography. For more advanced observers, DIY film options or larger-diameter filters can extend capabilities to a wider range of instruments while supporting high-contrast solar imaging.