Collection: ND5 White Light Binocular Filters

Observe the Sun safely and in remarkable detail with Seymour Solar’s ND5 White Light filters designed specifically for binoculars. Built with precision ND5 film mounted in lightweight aluminum cells, these filters block 99.999% of sunlight while revealing solar detail like sunspots, granulation, and eclipse silhouettes — all in clear, true white light.

Key Features

• ND5 Optical Density: Reduces sunlight by a factor of 100,000 (99.999%) for safe direct solar viewing.
• Front-Mounted Design: Filters slip onto the objective lenses and secure with nylon thumb screws for a snug, centered fit.
• Matched Pairs: Sold as a matched set — one for each barrel of your binoculars.
• Fits: Most 50mm–100mm binoculars.
• Made in the USA: Handcrafted in Avon, North Carolina.

What You’ll See

• Sunspots — including umbra and penumbra structure
• Solar surface granulation
• The Moon’s silhouette during partial or annular eclipses
• Planetary transits (Mercury or Venus)

Not sure what size fits your binoculars? Click here to measure for the perfect fit.

Safety Note

Seymour Solar ND5 White Light filters are designed for front-mounted use on binoculars. They achieve optical transmittance levels appropriate for safe solar observation in white light. These filters are not eclipse glasses and are not certified under ISO 12312-2, which applies only to eyewear.

Frequently Asked Questions

• Can I use these to view an eclipse?
  Yes — they’re perfect for partial and annular solar eclipses. Never view a total eclipse unless the Sun is completely covered.
• What can I see with these filters?
  Sunspots, the solar disk, and surface granulation in true white light. (Prominences require H-alpha filters.)
• Do I need filters for both lenses?
  Yes, each binocular requires a matched pair — included with every purchase.

Prepare now for your next eclipse or solar event with Seymour Solar ND5 White Light binocular filters — trusted by educators and astronomy enthusiasts worldwide.

Always attach solar filters to the front (sun-facing) end of your binoculars before aiming toward the Sun.