[{"id":643006464293,"handle":"spotting-scope-solar-filters","title":"ND5 White-Light Spotting Scope Solar Filters – Safe Viewing with Helios Glass® or Film","updated_at":"2025-11-29T07:18:34-05:00","body_html":"\u003ch2\u003eND5 White-Light Solar Filters for Spotting Scopes – Helios Glass® \u0026amp; Hyperion Film\u003c\/h2\u003e\n\u003cp\u003eObserve the Sun with confidence using our premium \u003cstrong\u003eND5 spotting scope solar filters\u003c\/strong\u003e from Seymour Solar. These \u003cstrong\u003ewhite-light solar filters\u003c\/strong\u003e block 99.999% of sunlight, making them safe for direct solar observation during eclipses, transits, and sunspot tracking.\u003c\/p\u003e\n\u003cp\u003eChoose \u003cstrong\u003eHelios Solar Glass®\u003c\/strong\u003e for high-clarity optics or \u003cstrong\u003eHyperion Polymer Film\u003c\/strong\u003e for lightweight flexibility. Both options are ISO-certified for safe solar viewing. Available as \u003cstrong\u003ethreaded filters\u003c\/strong\u003e for standard attachment or \u003cstrong\u003eslip-on filters\u003c\/strong\u003e with nylon thumb screws for a secure fit.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eND5 White-Light Filter\u003c\/strong\u003e: Blocks 99.999% of sunlight for safe, direct solar observation with your spotting scope.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass or Film Options\u003c\/strong\u003e: Helios Glass® for optical sharpness; Hyperion Film for easy handling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible Mounting\u003c\/strong\u003e: Threaded filters screw onto your scope lens; slip-on filters secure with adjustable screws (60mm–80mm).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Fit\u003c\/strong\u003e: Compatible with most compact and full-size spotting scopes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO-Certified Protection\u003c\/strong\u003e: Built to safeguard your optics and eyes during intense solar activity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e🔍 Not sure what size fits your spotting scope?\u003c\/strong\u003e\u003cbr\u003e👉 \u003ca href=\"https:\/\/solar-eclipse-2023.myshopify.com\/pages\/how-to-measure-for-a-solar-filter\" style=\"color: #ff2a00; font-weight: bold;\" rel=\"noopener\" target=\"_blank\"\u003eClick here to measure your spotting scope for the perfect filter fit.\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOrder now\u003c\/strong\u003e for safe, high-contrast solar viewing — perfect for your next eclipse or solar photography session.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNote: Always install your solar filter before pointing at the Sun to prevent eye or equipment damage.\u003c\/em\u003e\u003c\/p\u003e","published_at":"2025-07-19T14:19:17-04:00","sort_order":"best-selling","template_suffix":"","disjunctive":false,"rules":[{"column":"tag","relation":"equals","condition":"spotting-scope"}],"published_scope":"web","image":{"created_at":"2025-07-26T13:59:04-04:00","alt":null,"width":500,"height":406,"src":"\/\/seymoursolar.com\/cdn\/shop\/collections\/SF300Amazon.jpg?v=1753552744"}},{"id":643006038309,"handle":"camera-solar-filters","title":"ND5 White Light Camera Filters","updated_at":"2025-12-02T07:15:31-05:00","body_html":"\u003cp\u003e\u003cstrong\u003eCapture the Sun safely and in stunning detail\u003c\/strong\u003e with Seymour Solar’s ND5 White Light filters for DSLR and mirrorless cameras. These front-mounted filters block 99.999% of sunlight for crisp, true white-light solar photography — ideal for capturing eclipses, sunspots, and planetary transits.\u003c\/p\u003e\n\n\u003ch3\u003eFilter Options\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eHelios Glass®\u003c\/strong\u003e – Titanium-coated optical glass for superior sharpness and contrast.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eHyperion Film\u003c\/strong\u003e – Lightweight polymer film for flexible, travel-friendly solar imaging.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMounting Styles:\u003c\/strong\u003e Threaded filters screw directly onto the lens; slip-on filters use nylon thumb screws for a secure, adjustable fit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eND5 Optical Density:\u003c\/strong\u003e Blocks 99.999% of visible, UV, and IR light for safe solar imaging.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePrecision Fit:\u003c\/strong\u003e Available for most DSLR and mirrorless lenses (50mm–77mm).\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMade in the USA:\u003c\/strong\u003e Hand-crafted in Avon, North Carolina using premium optical materials.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eNot sure which size fits your lens?\u003c\/em\u003e \u003ca href=\"\/pages\/size-guide\"\u003eClick here to measure your camera for the perfect filter fit.\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch3\u003eSafety Note\u003c\/h3\u003e\n\u003cp\u003eSeymour Solar ND5 White Light filters are designed for front-mounted use on DSLR and mirrorless lenses. They achieve transmittance levels appropriate for safe solar observation in white light. These are \u003cstrong\u003enot eclipse glasses\u003c\/strong\u003e and are \u003cstrong\u003enot certified under ISO 12312-2\u003c\/strong\u003e, which applies only to eyewear.\u003c\/p\u003e\n\n\u003ch3\u003eUsage Tips\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eAlways attach the filter before pointing your camera at the Sun.\u003c\/li\u003e\n \u003cli\u003eUse manual focus for best results when photographing sunspots or eclipses.\u003c\/li\u003e\n \u003cli\u003eRemove the filter before nighttime or non-solar photography.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003ePrepare now for your next eclipse or solar event\u003c\/strong\u003e with Seymour Solar’s ND5 White Light camera filters — trusted by photographers worldwide for safe, high-contrast solar imaging.\u003c\/p\u003e\n","published_at":"2025-07-19T14:05:27-04:00","sort_order":"best-selling","template_suffix":"","disjunctive":true,"rules":[{"column":"tag","relation":"equals","condition":"camera"},{"column":"tag","relation":"equals","condition":"camera-threaded"}],"published_scope":"web","image":{"created_at":"2025-07-19T14:09:00-04:00","alt":null,"width":1015,"height":1399,"src":"\/\/seymoursolar.com\/cdn\/shop\/collections\/s289825222282458560_p192_i1_w1015_3c29c9f0-2aac-4867-b8f1-c34cb298c65c.jpg?v=1752948540"}},{"id":643005808933,"handle":"telescope-solar-filters","title":"ND5 White Light Telescope Filters","updated_at":"2025-11-29T07:18:34-05:00","body_html":"\u003cp\u003e\u003cstrong\u003eObserve the Sun safely and in detail\u003c\/strong\u003e with Seymour Solar’s ND5 White Light telescope filters. Each filter blocks 99.999% of sunlight, revealing the Sun’s surface with crisp, natural contrast — perfect for viewing sunspots, granulation, eclipses, and planetary transits.\u003c\/p\u003e\n\u003ch3\u003eFilter Types\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelios Glass®\u003c\/strong\u003e – Titanium-coated optical glass for ultra-sharp, high-contrast views.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHyperion Film\u003c\/strong\u003e – Lightweight ND5 polymer film for portable, everyday solar observation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOff-Axis Helios Glass®\u003c\/strong\u003e – For telescopes with central obstructions or large apertures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat You’ll See\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSunspots — including umbra and penumbra structure\u003c\/li\u003e\n\u003cli\u003eSolar granulation — surface texture in true white light\u003c\/li\u003e\n\u003cli\u003eThe Moon’s silhouette during solar eclipses\u003c\/li\u003e\n\u003cli\u003eTransits of Mercury or Venus (when visible)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Highlights\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eND5 Optical Density:\u003c\/strong\u003e Blocks 99.999% of visible, UV, and IR light for safe front-mounted solar viewing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in the USA:\u003c\/strong\u003e Precision-assembled aluminum cells with secure nylon thumb screws.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e 50mm – 100mm telescope objective diameters.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNot sure what size you need?\u003c\/em\u003e \u003ca href=\"\/pages\/size-guide\"\u003eClick here to measure your telescope for the perfect filter fit.\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eSafety Note\u003c\/h3\u003e\n\u003cp\u003eSeymour Solar ND5 White Light filters are designed for front-mounted use on telescopes only. They achieve transmittance levels appropriate for safe solar observation in white light. These are \u003cstrong\u003enot eclipse glasses\u003c\/strong\u003e and are \u003cstrong\u003enot certified under ISO 12312-2\u003c\/strong\u003e, which applies only to eyewear.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCan I use these to view an eclipse?\u003c\/strong\u003e\u003cbr\u003eYes, when front-mounted on your telescope. Always mount before aiming at the Sun.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat’s the difference between Helios Glass® and Hyperion Film?\u003c\/strong\u003e\u003cbr\u003eHelios Glass offers higher optical precision; Hyperion Film is lighter and ideal for travel or quick setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhen should I use an Off-Axis Filter?\u003c\/strong\u003e\u003cbr\u003eFor reflectors or SCTs with central obstructions — it prevents vignetting and improves contrast.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAlways mount filters securely on the sun-facing end of your telescope before pointing at the Sun.\u003c\/strong\u003e\u003c\/p\u003e","published_at":"2025-07-19T13:59:16-04:00","sort_order":"best-selling","template_suffix":"","disjunctive":false,"rules":[{"column":"tag","relation":"equals","condition":"telescope"}],"published_scope":"web","image":{"created_at":"2025-07-19T13:59:15-04:00","alt":null,"width":500,"height":232,"src":"\/\/seymoursolar.com\/cdn\/shop\/collections\/solarfilters_orig_ca45696a-4b01-46e9-b232-71fb3f0a6545.jpg?v=1752947955"}}]
Seymour Solar Helios Glass Slip-On Solar Filter – Telescope, Spotting Scope, and Camera Lens Accessory
Description
Observe the Sun with exceptional clarity using the Helios Glass Slip-On Solar Filter by Seymour Solar. Built with precision titanium-coated optical glass, this ND5 white-light filter blocks 99.999% of sunlight while delivering a sharp, high-contrast solar image in a clean yellow/orange tone. Perfect for viewing sunspots, eclipses, and planetary transits with telescopes, spotting scopes, and camera lenses when correctly installed on suitable equipment.
Key Features
Premium Titanium-Coated Glass: Stable, high-contrast solar views with excellent limb sharpness and surface detail.
ND5 Optical Density: Reduces sunlight by a factor of 100,000, bringing the Sun’s brightness into a range suitable for front-mounted white-light solar observation when the filter is properly installed.
Slip-On Aluminum Cell: Precision-assembled in the USA; mounts securely over the front of your optic within the specified outer-diameter range.
Compatible With: Telescopes, spotting scopes, and camera lenses that fall within the supported OD range.
Durable & Repeatable: Rigid glass substrate preserves optical figure and contrast over years of use.
What You’ll See
Sunspots — including umbra, penumbra, and light bridges
Solar granulation and surface texture
The Moon’s silhouette during partial and annular eclipses
Transits of Mercury and Venus (when visible)
Material Characteristics
Helios Glass (Titanium-Coated): Produces a crisp yellow/orange solar image with strong contrast and stable sharpness across the field. Ideal for visual observers and solar photographers who want consistent, repeatable white-light results.
Sizing & Fit
This filter slips over the front of your optic for a depth of approximately 1 inch (25 mm). Measure the outer diameter (OD) of the front end of your telescope, spotter, or camera lens—accounting for any flare or wider section within the first inch—and choose the filter size whose OD range includes your measurement.
Helios Glass ND5 filters are designed for front-mounted white-light solar observation on appropriate optical instruments. These are not eclipse glasses and are not certified under ISO 12312-2 (which applies solely to eyewear). Always attach the filter securely before aiming your optic at the Sun.
Inspect the filter before each use and do not use it if the glass or coating appears cracked, chipped, or damaged.
Confirm that the slip-on cell fits firmly and cannot be dislodged by light pressure or a gust of wind.
Do not use this filter as a handheld viewer or place it directly in front of your eyes.
FAQs
Can I use this for solar eclipses?
Yes — it is well suited for partial and annular eclipses when mounted on appropriate optics. For a total solar eclipse, remove the filter only during totality (if present at your location) and replace it immediately when the bright solar disk reappears.
Is this suitable for imaging?
Yes — ND5 attenuation reduces brightness to levels appropriate for white-light solar observation and imaging when the filter is properly installed on compatible telescopes, spotting scopes, or camera lenses.
Does it work on cameras?
Yes — it can be used on camera lenses that fall within the specified OD range. Measure the outside of the lens barrel near the front, not the filter thread size, to select the correct slip-on filter.
