Short answer: choose a purpose-built solar or high-quality neutral density filter to safely observe and photograph solar eclipses. The right filter protects your eyes and camera while delivering clear, natural images. This guide highlights five top options that balance safety, compatibility, and image quality for different setups—telescopes, spotting scopes, and DSLR or mirrorless cameras. Whether you’re after quick eclipse captures or detailed solar photography, these picks cover varied budgets and lens sizes.
Buyer snapshot: the top picks fall into three practical categories. For universal telescope or camera compatibility, the Celestron EclipSmart filter is a strong all-rounder. For long-exposure solar photography with compact lenses, the K&F CONCEPT ultra-dark ND filters offer high light reduction with robust build quality. For wider-angle or multiple lens setups, several ND options from K&F CONCEPT provide versatile size options and coatings. The table below helps compare the highlights at a glance.
| Product | Best For | Key Benefit |
|---|---|---|
| Celestron EclipSmart Safe Solar Eclipse Filter | Telescopes, spotting scopes, or DSLRs | ISO 12312-2:2015(E) safety standard and secure fit |
| K&F CONCEPT 58mm ND100000 (16.6 Stops) | Wide-angle and general purpose | High light reduction with multi-layer coatings |
| K&F CONCEPT 58mm ND1000000 (20 Stops) | High-contrast eclipse shots | Extreme light reduction for bright skies |
| K&F CONCEPT 82mm ND100000 (16.6 Stops) | Smaller to mid-size lenses with wider field | Ultra-dark, minimizes glare |
| K&F CONCEPT 67mm ND100000 (16.6 Stops) | Versatile for several lenses | Slim frame, reduces vignetting |
Note: Each product here serves different eclipse photography needs. Use the buying guide and FAQ to decide which option best fits your lens diameter, your camera sensor size, and your preferred eclipse photography style.
Product Overview and Comparisons
Celestron EclipSmart Safe Solar Eclipse Filter
The Celestron EclipSmart filter is a solar-safe option designed to meet ISO 12312-2:2015(E) standards for direct solar viewing. It’s compatible with objective lenses ranging from 75 mm to 100 mm and can be used with telescopes, spotting scopes, or DSLR cameras. The filter uses adjustable side panels and an elastic band to secure a safe, snug fit. When finished, it folds flat for storage in a reusable bag. Best for shooters who want a single, reliable fit across multiple setups. Limitation: may require adapter considerations for non-standard configurations or lenses outside the stated diameter range.
- Best for: Observing eclipses safely with various optical rigs
- Good choice when you want a single filter across multiple devices
K&F CONCEPT 58mm ND100000 (16.6 Stops)
This ultra-dark ND filter is designed for high-contrast eclipse scenes with 16.6 stops of light reduction. It uses AGC optical glass with a slim aviation aluminum frame to reduce vignetting on wide-angle lenses. The filter features 28-layer coatings to suppress ghosting and reflections, helping maintain natural color while controlling exposure. Best for: photographers needing substantial light control on mid-size lenses. Caution: ensure lens diameter exactly matches 58 mm to avoid misalignment or vignetting.
- Best for: Wide-angle or mid-range lenses
- Better for: Reducing flare and achieving clean eclipse silhouettes
K&F CONCEPT 58mm ND1000000 (20 Stops)
This filter provides an extreme 20-stop light reduction, ideal for bright-sky eclipse scenes and high dynamic range shooting. It is positioned as a flagship ND option from K&F CONCEPT with an AGC optical glass composition and an aluminum frame designed to resist jamming. Best for: photographers who want maximum exposure control on very bright days. Limitation: 58 mm size is relatively common but still requires precise lens matching to avoid edge darkening.
- Best for: High-contrast eclipse photography in bright daylight
- Choose this if you need strong light blocking for dramatic skies
K&F CONCEPT 82mm ND100000 (16.6 Stops)
This 82 mm ND filter offers 16.6 stops of light reduction with a slim frame to minimize vignetting on wider lenses. The filter employs 28-layer coatings to minimize glare and ghosting, promoting clearer eclipse photography. Best for: photographers using 82 mm lenses seeking strong exposure control without color shift. Limitation: only suitable for 82 mm compatible lenses; confirm your lens diameter before purchasing.
- Best for: Lenses around 82 mm diameter
- Better for: Maintaining color accuracy while protecting the sensor during bright events
K&F CONCEPT 67mm ND100000 (16.6 Stops)
This 67 mm ND filter provides 16.6 stops of light reduction with a slim aluminum frame that minimizes vignetting. It includes multi-layer coatings to reduce reflections and glare for eclipse photography. Best for: users with mid-size lenses who want a balance of density and portability. Caution: verify lens diameter and mount compatibility before ordering.
- Best for: Mid-size lenses and portable setups
- Choose this for versatile use across multiple eclipse photography scenarios
K&F CONCEPT 58mm ND100000 (16.6 Stops) K Series
Another 58 mm option from K&F CONCEPT, this filter provides 16.5 stops of exposure control with 18-layer coatings. The optical glass ensures safer, clearer images without excessive glare. Best for: photographers who want reliable, widely compatible 58 mm options. Limitation: ensure the 58 mm diameter matches your lens to avoid accidental vignetting or fit issues.
- Best for: 58 mm lenses and beginner-to-mid-range eclipse photography
- Better for: Lightweight, easy-to-carry filter setups
K&F CONCEPT 49mm ND1000000 (20 Stops)
This 49 mm ND filter offers 20 stops of light reduction, suitable for compact lenses or close-up eclipse shots. It uses multi-layer coatings to limit reflections and color shifts. Best for: compact camera lenses or adapters that require high-density filtration. Limitations: check compatibility with specific camera bodies and accessories to avoid vignette at wide angles.
- Best for: Small-lens eclipse photography
- Choose this if you need significant exposure control in a compact package
K&F CONCEPT 67mm ND1000000 (20 Stops)
This 20-stop ND filter suits 67 mm lenses for maximum brightness control during eclipse events. It’s built with AGC optical glass and a slim frame to minimize vignetting. Best for: versatile use across multiple 67 mm lenses. Limitation: verify exact diameter for the lens in use to prevent edge darkening or mounting issues.
- Best for: 67 mm lenses and tiered eclipse photography
- Better for: High-contrast results with bright daylight surroundings
Buying Guide: How To Choose The Right Eclipse Filter
What type of filter do I need for eclipse photography?
For direct solar viewing and photography, solar filters certified to ISO 12312-2:2015(E) are recommended. Neutral density (ND) filters can also work for certain photography styles, but solar ISO-rated filters provide safer and more predictable results for sun-eclipse imaging.
What lens size should I match?
Filter compatibility depends on lens diameter. Choose a filter with a diameter that matches your lens or camera kit. If you use adapters or step-down rings, ensure the filter remains securely mounted and does not cause vignetting.
Which features matter most?
Key features include safe and secure fit, coating quality to reduce reflections, and a durable frame that resists jamming. For ND filters, the stopping power (stops of light reduction) should align with your exposure goals for eclipse scenes.
What about storage and handling?
Look for filters that fold flat or come with a protective bag or case. Proper storage protects coatings and glass from scratches or dust prior to the event.
Safety considerations
Do not view the Sun directly through any unapproved or damaged filter. Always verify that the filter is ISO-certified and properly fitted before use.
Usage tips for eclipse photography
Plan exposure settings in advance. Use a stable tripod, remote shutter or timer, and consider a solar tracking setup for longer exposures. Start with broader frame compositions and gradually zoom in on solar features like sunspots or prominences.
Quick product comparison
- Safest universal option: Celestron EclipSmart for cross-device use
- Best for extreme exposure control: 20-stop ND filters from K&F CONCEPT
- Best for mid-size optics: 82 mm and 67 mm ND options from K&F CONCEPT
FAQ
- Q: Can I use a standard ND filter for solar eclipse photography? A: ND filters can reduce light, but only ISO-certified solar filters are designed for sun observation. ND filters may cause color shifts or sensor damage if not designed for solar use.
- Q: Is it necessary to buy multiple filters for different lenses? A: If you frequently shoot with several lenses, consider a range of sizes (e.g., 58 mm, 67 mm, 82 mm) or a universal option that fits multiple devices.
- Q: What defines the “ND stops” rating? A: Stops indicate how many powers of ten the filter reduces incoming light; a higher number means less light passes through.
- Q: Are ND100000 and ND1000000 filters suitable for all eclipse scenes? A: They are very dark; use them when you need substantial light control, such as very bright daylight or wide-angle eclipse shots.
- Q: How should I store eclipse filters after use? A: Clean, dry storage in a protective bag or case helps prevent scratches and contamination before your next session.