Capturing the Sun, eclipses, and sunspots requires specialized solar filters to protect your eyes and equipment while maintaining image quality. This guide highlights top solar filters designed for cameras, telescopes, and smartphone photography. The selections emphasize ISO safety compliance, secure mounting, and versatile compatibility so you can observe and photograph the Sun with confidence.
| Product | Brand | Compatibility | Key Feature |
|---|---|---|---|
| Celestron EclipSmart Safe Solar Eclipse Telescope Filter (1) | Celestron | Telescope, DSLR, spotting scope (75–100 mm diameter) | ISO 12312-2:2015(E) compliant; secure fit; reusable |
| Celestron 94244 EclipSmart Solar Eclipse Telescope Filter | Celestron | 8” Schmidt-Cassegrain/EdgeHD telescopes | ISO 12312-2 compliant; snug fit with solar safe film |
| Celestron – EclipSmart Safe Solar Eclipse Telescope Filter (127/130 Telescopes) | Celestron | 127/130 mm telescopes | ISO standard; secure, snug fit; includes safety cap |
| Gravitis Solar Eclipse Photography 2in1 Filter & Viewer (Smartphones) | Gravitis | Smartphones (universal design) | Safeguards smartphone camera; universal compatibility |
| Celestron – EclipSmart Safe Solar Eclipse Telescope Filter (70 mm) | Celestron | AstroMaster 70AZ/EQ and similar | Three safety screws; safety cap; ISO compliance |
The products above cover a range of observing needs, from professional-grade telescope filters to smartphone-focused solar imaging aids. The table highlights the essentials: ISO safety compliance, secure mounting, and broad compatibility. The sections below detail each chosen item, helping you compare performance features and fit for your gear.
Celestron EclipSmart Safe Solar Eclipse Filter (Telescope/DSLR)
The Celestron EclipSmart Safe Solar Eclipse Filter is designed to meet ISO 12312-2:2015(E) safety standards for direct Sun viewing. It is suitable for use with various telescope setups, including spotting scopes and DSLR cameras, with objective diameters ranging from 75 mm to 100 mm. The filter features adjustable side panels for a secure, snug fit and can be folded flat for compact storage in its reusable bag. This makes it versatile for enthusiasts who observe solar activity on a regular basis or during eclipses.
Celestron EclipSmart Solar Filter for 8” SCT/EdgeHD
This EclipSmart model is ISO 12312-2 compliant and designed to work with Celestron’s 8” Schmidt-Cassegrain and EdgeHD telescopes. It uses a solar safe film to ensure secure viewing of eclipses and sunspots. Two hook-and-loop straps help maintain a snug fit, reducing vignetting or filter movement during solar observations. The product is built for stability across longer observing sessions and is a strong option for hobbyists and educators alike.
Celestron EclipSmart Safe Solar Eclipse Filter (127/130 mm)
Designed for broader telescope families, this model is compatible with several 127mm and 130mm class telescopes. It emphasizes ISO safety compliance and a secure, snug fit via two hook-and-loop straps. A protective safety cap guards the filter when not in use. This filter is well-suited for observers who own mid-sized to large amateur telescopes and want reliable solar viewing across multiple sessions.
Celestron EclipSmart Solar Filter for 6” SCT Telescopes
Ideal for smaller Schmidt-Cassegrain telescopes, this filter is ISO 12312-2 compliant and uses two hook-and-loop straps to secure onto the objective. The design includes a safety cap for outer surface protection when not in use. This option balances portability with essential safety, making it practical for travelers or those with compact solar setups.
Gravitis Solar Eclipse Smartphone Filter & Viewer
The Gravitis 2-in-1 solar filter and viewer is designed for smartphones, enabling safe solar photography across devices. It emphasizes protection for the smartphone camera, universal compatibility with iPhone and Android devices, and an easy-to-use approach for capturing solar events. This option is especially useful for casual observers and social media sharing, providing a straightforward entry point into solar imaging without heavy gear.
Buying Guide: Key Purchase Considerations and Comparisons
- Safety certification and standards: Choose filters that explicitly meet ISO 12312-2:2015(E) or equivalent safety certifications. This ensures safe viewing, especially for direct solar observation and photography.
- Mounting compatibility: Check the filter’s fit for your specific equipment. Some filters are designed for 75–100 mm telescope diameters, while others target particular models like 8” SCT or 6” SCT. For smartphone use, look for a universal or adapter-friendly design.
- Snugness and stability: Secure mounting reduces image shake and protects the filter from shifting during observation. Look for dual-strap or screw-cap designs where applicable.
- Durability and storage: Reusable filters with protective caps or bags extend the filter’s life and protect against dust and scratches when not in use.
- Photography goals: If you primarily observe, a filter with a secure fit and safe film is essential. For imaging, prioritize filters that minimize vignetting, offer consistent transmission across wavelengths, and match your camera or smartphone’s exposure settings.
- Portability and ease of use: Smartphone filters emphasize portability and speed. Telescope filters deliver higher quality images for serious observational projects but may require more setup time.
- Cost vs. value: While professional-grade telescope filters can be pricier, they provide reliable durability and compatibility across multiple sessions. Smartphone options are budget-friendly and accessible for beginners.
In evaluating these options, users should consider their primary equipment, the frequency of solar events they plan to photograph, and the level of detail they aim to capture. For telescope users, filters with ISO protection and secure mounting are essential, while smartphone users may benefit from universal designs that simplify snap-and-shoot solar imaging. The included models provide a balance of safety, adaptability, and ease of use across different observing setups.