Preparing for a solar eclipse requires reliable filters to protect equipment and capture clear, color-accurate images. This guide highlights top 67mm solar eclipse and high-contrast ND filters, explaining how they work, what to look for, and how to choose the right accessory for your setup. We cover ND and solar filters from trusted brands, plus essential buying considerations to help you avoid glare, ghosting, and overexposure when observing or photographing the Sun.
| Product | Brand | Size | Type | Key Benefit |
|---|---|---|---|---|
| K&F CONCEPT 67mm ND100000 (16.6 Stops) Nano X Series | K&F CONCEPT | 67mm | ND Filter | Extreme light reduction for dramatic sunrises and auto exposure control |
| K&F CONCEPT 67mm ND100000(16.6 Stops) ND Filter (Nano X Series, 28 Coatings) | K&F CONCEPT | 67mm | ND Filter | Multiple coatings with low reflectivity to reduce glare |
| K&F CONCEPT 67mm ND1000000 (20 Stops) ND Lens Filter | K&F CONCEPT | 67mm | ND Filter | Highest available light reduction for long-exposure Sun images |
| Celestron EclipSmart Safe Solar Eclipse Filter | Celestron | 75–100mm (fits various optics) | Solar Filter | ISO 12312-2 safety standard for solar viewing |
| Thousand Oaks Optical 6″x6″ Solar Filter Sheet | Thousand Oaks Optical | 6″x6″ | Solar Filter Sheet | DIY solar filtering for telescopes, binoculars, and cameras |
K&F CONCEPT 67mm ND100000 (16.6 Stops) Nano X Series
The K&F CONCEPT 67mm ND100000 ND filter is designed for heavy light reduction, offering 16.5–16.6 stops of attenuation. It uses optical glass with an 18-layer coating approach to minimize glare and ghosting while maintaining color accuracy. This filter helps photographers manage exposure when shooting bright solar scenes, enabling longer exposures or the capture of sun detail without blown highlights. The slim, durable frame reduces vignetting on wide-angle lenses, and the low reflectivity improves overall image clarity.
K&F CONCEPT 67mm ND100000(16.6 Stops) Nano X Series (28 Coatings)
This variant emphasizes 28-layer coatings and aviation-grade frame construction, providing enhanced durability and precision. The ultra-dark ND filter reduces light by about 16.6 stops, helping to prevent overexposure and maintain natural color in sunlit scenes. The product employs imported AGC optical glass with very low reflectivity, designed to minimize flare and color shifts. A slim, lightweight design helps preserve full-frame field of view without introducing shading on wide lenses.
K&F CONCEPT 67mm ND1000000 (20 Stops)
With 20 stops of light reduction, this filter provides the greatest sun-darkening capability among the listed options, enabling dramatic solar photography under bright conditions. It uses AGC optical glass with a low reflectivity coating and an aviation-grade aluminum frame. The ultra-slim profile minimizes vignette on wider lenses and supports high-contrast imaging of solar features, sunspots, and eclipse phases while keeping exposure values manageable for long-duration captures.
Thousand Oaks Optical 6″x6″ Solar Filter Sheet
This solar filter sheet is designed for DIY filtration across telescopes, binoculars, and cameras. The material blends a silver-black polymer for safe solar viewing, and Thousand Oaks Optical has a long history (over 30 years) of producing protective solar filters. The sheet approach lets you craft filters tailored to your equipment, offering a cost-effective alternative to factory-made options. When using sheet filters, proper mounting and fit are essential to ensure safe, unobstructed solar viewing.
Celestron EclipSmart Safe Solar Eclipse Filter
The Celestron EclipSmart filter meets ISO 12312-2:2015(E) safety standards for direct solar viewing. It is designed to work with a variety of telescope and camera setups, including spotting scopes and DSLRs. Side panels allow an adjustable fit to secure the filter, and the product folds for compact storage. This option emphasizes safety and compatibility when observing solar phenomena like eclipses, sunspots, or solar activity on clear days.
Buying Guide: Key Considerations for 67mm Solar Eclipse Filters
- Filter type and purpose: ND filters reduce overall light for photography and long-exposure effects, while solar eclipse filters are designed to safely view the Sun. Choose ND for creative exposure control or solar filters for safe solar viewing and imaging.
- Light reduction level: ND filters come with varying stops (e.g., 16.5, 16.6, or 20). Higher stops dramatically cut light, enabling long-exposure Sun photography but requiring stable mounts and longer shutter times.
- Optical quality and coatings: Look for optical glass with multi-layer coatings to minimize reflections, glare, and color bias. Low reflectivity helps maintain image clarity in bright solar scenes.
- Material and build: Aviation-grade frames and slim designs reduce vignetting on wide-angle lenses. Durable construction resists jams and wear during field use.
- Compatibility: Ensure the filter thread matches your lens (67mm in this article) and confirm the filter won’t interfere with autofocus or image stabilization on your camera.
- Safety and standards: For solar viewing, ISO 12312-2:2015(E) compliance indicates adherence to established safety guidelines. For DIY sheets, follow manufacturer recommendations to avoid eye or equipment damage.
- Storage and handling: Keep filters in protective pouches or cases. Foldable or bagged solar sheets should be stored safely to prevent accidental exposure or damage.
- Cost vs. value: While higher-stakes solar filters offer safety,ND filters provide broad utility for landscape and astro photography. Evaluate your typical use to select the best option.