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White-light solar observation is the most accessible branch of astronomy and the least forgiving of shortcuts. A correct full-aperture filter shows sunspots, granulation and faculae safely in daylight; an incorrect one can cause permanent eye injury in less than a second. David Astro carries white-light solar filters in Canada, stocked domestically and ready to ship.

We will not supply an unsafe configuration. If you are unsure whether a filter suits your telescope, ask us first — this is the one category where guessing is genuinely dangerous.

Filtres

CA$67.00 - CA$117.00
CA$67.00 - CA$117.00
CA$67.00 - CA$117.00
CA$67.00

Baader Filtre AstroSolar OD 5.0 pour Jumelles - 50-100mm

Options available
17 variants in stock

Les filtres Baader sont vendus à l'unité. Si vous possédez une paire de jumelles, il faudra commander 2 filtres. Observation solaire en toute sé...

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CA$67.00 - CA$117.00
CA$67.00 - CA$117.00
CA$67.00 - CA$117.00
CA$67.00
CA$53.00 - CA$53.00
CA$53.00
CA$53.00 - CA$53.00
CA$53.00

Baader AstroSolar Photo Film OD 3.8

BAA-2459278
5 en stock

Optical Density 3.8: Specifically engineered for high-speed solar photography, not visual observation. Enables Short Exposures: Allows for shutt...

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CA$53.00 - CA$53.00
CA$53.00
CA$53.00 - CA$53.00
CA$53.00
CA$24.00 - CA$459.00
CA$24.00 - CA$459.00
CA$24.00 - CA$459.00
CA$24.00

Baader Film Astrosolar OD 5.0

Options available
9 variants in stock

AstroSolar® Film de sécurité 5.0 pour l'observation solaire et la photographie à fort grossissement, qualité télescope, densité optique (OD) = 5...

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CA$24.00 - CA$459.00
CA$24.00 - CA$459.00
CA$24.00 - CA$459.00
CA$24.00
CA$69.00 - CA$175.00
CA$69.00 - CA$175.00
CA$69.00 - CA$175.00
CA$69.00

Baader Filtre AstroSolar OD 5.0 pour Lunettes de Repérage- 50-150mm

Options available
9 variants in stock

ASSF - Filtre solaire Baader pour longues-vues, télescopes amateurs et objectifs d'appareils photo Cette famille de filtres offre une solution s...

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CA$69.00 - CA$175.00
CA$69.00 - CA$175.00
CA$69.00 - CA$175.00
CA$69.00
CA$129.00 - CA$314.00
CA$129.00 - CA$314.00
CA$129.00 - CA$314.00
CA$129.00

Baader Filtre AstroSolar OD 5.0 pour Télescopes - 80-280mm

Options available
27 variants in stock

ASTF - Filtre solaire Baader pour tous les télescopes haut de gamme (réfracteurs, réflecteurs, CAT) Cette famille de filtres solaires est fabriq...

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CA$129.00 - CA$314.00
CA$129.00 - CA$314.00
CA$129.00 - CA$314.00
CA$129.00
CA$415.00 - CA$415.00
CA$415.00
CA$415.00 - CA$415.00
CA$415.00

Baader Filtre Double-Stack Raie K - 1.25"

BAA-2961590

bords de revêtement scellés anti-vieillissement Avertissement : pour l'imagerie photographique uniquement Pour le travail solaire, utilisez uni...

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CA$415.00 - CA$415.00
CA$415.00
CA$415.00 - CA$415.00
CA$415.00
CA$838.00 - CA$940.00
CA$838.00 - CA$940.00
CA$838.00 - CA$940.00
CA$838.00

Baader Prisme de Herschel Cool-Ceramic (Visuel/Photographique)

Options available
2 variants in stock

Le prisme Herschel Cool-Caramic Safety de Baader Planetarium 2" offre les meilleures vues solaires en lumière blanche disponibles, et est le seul ...

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CA$838.00 - CA$940.00
CA$838.00 - CA$940.00
CA$838.00 - CA$940.00
CA$838.00
CA$459.00 - CA$2,416.00
CA$459.00 - CA$2,416.00
CA$459.00 - CA$2,416.00
CA$459.00

Baader Filtre de Réjection d'Énergie D-ERF - 75-180mm

Options available

D-ERF (filtre de réflexion d'énergie diélectrique) de différentes tailles Pré-filtre pour réduire la chaleur pendant l'observation H-alpha avec...

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CA$459.00 - CA$2,416.00
CA$459.00 - CA$2,416.00
CA$459.00 - CA$2,416.00
CA$459.00
CA$162.00 - CA$309.00
CA$162.00 - CA$309.00
CA$162.00 - CA$309.00
CA$162.00

Baader Filtre Solaire 3.8 OD pour Photographie - 80-280mm

Options available

NON adapté à l'observation solaire visuelle - des lésions oculaires permanentes résulteront de toute utilisation visuelle, y compris l'utilisat...

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CA$162.00 - CA$309.00
CA$162.00 - CA$309.00
CA$162.00 - CA$309.00
CA$162.00
Baader Planetarium ASBF 50 – AstroSolar® Binocular Filter OD 5.1
CA$75.00 - CA$129.00
CA$75.00 - CA$129.00
CA$75.00 - CA$129.00
CA$75.00

Baader Planetarium ASBF – AstroSolar® Binocular Filter OD 5.1 – ClearWhite

Options available

Available for 50, 60, 70, 80 & 100mm Aperture Binoculars AstroSolar® White-Light Film Optical Density (OD) 5.1 for Visual Safety Clear, Neutra...

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CA$75.00 - CA$129.00
CA$75.00 - CA$129.00
CA$75.00 - CA$129.00
CA$75.00
Baader Planetarium ASSF 50 – AstroSolar® Spotter Filter OD 5.1 – ClearWhite
CA$76.00 - CA$193.00
CA$76.00 - CA$193.00
CA$76.00 - CA$193.00
CA$76.00

Baader Planetarium ASSF – AstroSolar® Spotter Filter OD 5.1 – ClearWhite

Options available

Available in seven sizes from 50mm to 150mm for spotting scopes, binoculars, finders and small telescopes Optical Density 5.1 for safe, direct vis...

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CA$76.00 - CA$193.00
CA$76.00 - CA$193.00
CA$76.00 - CA$193.00
CA$76.00
Baader Planetarium ASTF 80 – AstroSolar® Telescope Filter OD 5.1 – ClearWhite
CA$142.00 - CA$344.00
CA$142.00 - CA$344.00
CA$142.00 - CA$344.00
CA$142.00

Baader Planetarium ASTF – AstroSolar® Telescope Filter OD 5.1 – ClearWhite

Options available

Available in nine sizes from 80mm to 280mm (ASTF 80 to ASTF 280) to suit your telescope AstroSolar® Safety Film with Optical Density 5.1 Diffracti...

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CA$142.00 - CA$344.00
CA$142.00 - CA$344.00
CA$142.00 - CA$344.00
CA$142.00
Baader Planetarium AstroSolar® ClearWhite Safety Folie OD 5.1, 100x50cm
CA$168.00 - CA$576.00
CA$168.00 - CA$576.00
CA$168.00 - CA$576.00
CA$168.00

Baader Planetarium AstroSolar® ClearWhite Safety Film OD 5.1

Options available

Certified AstroSolar® Safety Film Optical Density 5.1 for Visual Use Available as 100x50cm or Giant-size 117x117cm Sheet "ClearWhite" Neutral Colo...

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CA$168.00 - CA$576.00
CA$168.00 - CA$576.00
CA$168.00 - CA$576.00
CA$168.00
CA$279.00 - CA$279.00
CA$279.00
CA$279.00 - CA$279.00
CA$279.00

Baader Filtre Double-Stack Solar Continuum - 1.25"

BAA-2458392

Filtre continuum solaire Baader double empilé 1¼". 8 nm / CWL 540 nm. Comprend 1x AstroSolar® Film photo OD 3.8 20x29 cm. Le filtre comprend de...

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CA$279.00 - CA$279.00
CA$279.00
CA$279.00 - CA$279.00
CA$279.00
CA$172.00 - CA$289.00
CA$172.00 - CA$289.00
CA$172.00 - CA$289.00
CA$172.00

Baader Filtre Solaire Continu

Options available
3 variants in stock

Baader Filtre Continuum Solaire 1.25" & 2", 10nm / CWL 540nm Améliore le contraste et réduit l'effet de la turbulence atmosphérique. Aussi...

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CA$172.00 - CA$289.00
CA$172.00 - CA$289.00
CA$172.00 - CA$289.00
CA$172.00
CA$456.00 - CA$456.00
CA$456.00
CA$456.00 - CA$456.00
CA$456.00

Baader Télécompresseur SolarSpectrum 0.7x - 2"

BAA-2459259

Monté sur le côté oculaire du filtre SolarSpectrum et réduit la distance focale étendue du système télécentrique vers le bas d'un facteur de 0,7 ...

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CA$456.00 - CA$456.00
CA$456.00
CA$456.00 - CA$456.00
CA$456.00
CA$533.00 - CA$533.00
CA$533.00
CA$533.00 - CA$533.00
CA$533.00

Baader Télécompresseur SolarSpectrum Grade de Recherche 0.4x - 2"

BAA-2459260

Comme le télécentrique TZ-3, le télépresseur RG 0.4x dispose d'une ouverture claire de 46 mm, parfaitement adapté même aux grands filtres H-alpha...

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CA$533.00 - CA$533.00
CA$533.00
CA$533.00 - CA$533.00
CA$533.00
CA$83.00 - CA$83.00
CA$83.00
CA$83.00 - CA$83.00
CA$83.00

Celestron Filtre Solaire EclipSmart - 6" SCT

CEL-94243

Caractéristiques Transformez instantanément vos télescopes Celestron 6" Schmidt-Cassegrain normaux (6" SCT) en un télescope solaire à lumière ja...

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CA$83.00 - CA$83.00
CA$83.00
CA$83.00 - CA$83.00
CA$83.00
CA$104.00 - CA$104.00
CA$104.00
CA$104.00 - CA$104.00
CA$104.00

Celestron Filtre Solaire EclipSmart - 8" SCT et EdgeHD

CEL-94244

Caractéristiques Transformez instantanément vos télescopes Celestron 8" Schmidt-Cassegrain normaux (8" SCT) et vos télescopes Celestron 8" EdgeH...

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CA$104.00 - CA$104.00
CA$104.00
CA$104.00 - CA$104.00
CA$104.00
CA$770.00 - CA$2,303.00
CA$770.00 - CA$2,303.00
CA$770.00 - CA$2,303.00
CA$770.00

Daystar Filtre de Réjection d'Énergie pour Réfracteur - Verre ERF 80-150mm

Options available

Les filtres de rejet d'énergie DayStar réduisent la charge thermique de votre filtre en absorbant ou en réfléchissant la lumière UV et/ou I et en ...

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CA$770.00 - CA$2,303.00
CA$770.00 - CA$2,303.00
CA$770.00 - CA$2,303.00
CA$770.00
CA$770.00 - CA$1,673.00
CA$770.00 - CA$1,673.00
CA$770.00 - CA$1,673.00
CA$770.00

Daystar Filtre de Réjection d'Énergie pour SCT - ERF Hors Axe 63-125mm

Options available

Les filtres de rejet d'énergie DayStar réduisent la charge thermique de votre filtre en absorbant ou en réfléchissant la lumière UV et/ou I et en ...

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CA$770.00 - CA$1,673.00
CA$770.00 - CA$1,673.00
CA$770.00 - CA$1,673.00
CA$770.00
CA$21.00 - CA$98.00
CA$21.00 - CA$98.00
CA$21.00 - CA$98.00
CA$21.00

Daystar SolarLite Film Sheet

Options available

SolarLite Film Sheet — Available in Multiple Sizes Certified ISO 12312-2:2015 Safe for Solar Viewing Thousand Oaks SolarLite Polymer Material Idea...

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CA$21.00 - CA$98.00
CA$21.00 - CA$98.00
CA$21.00 - CA$98.00
CA$21.00
Daystar Universal Lens Filter - 50mm
CA$24.00 - CA$42.00
CA$24.00 - CA$42.00
CA$24.00 - CA$42.00
CA$24.00

Daystar Universal Lens Filter

Options available

Universal Fit for Camera Lenses & Small Scopes Safe for Direct Solar Viewing & Imaging Features ISO-Compliant Solar Filter Film Renders th...

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CA$24.00 - CA$42.00
CA$24.00 - CA$42.00
CA$24.00 - CA$42.00
CA$24.00
Daystar Universal Lens Filter - 3 Pack
CA$63.00 - CA$63.00
CA$63.00
CA$63.00 - CA$63.00
CA$63.00

Daystar Universal Lens Filter - 3 Pack

DAY-U50270

Contents: Two 50mm filters and one 70mm filter Compatibility: Fits camera lenses, binoculars, and small spotting scopes Safety Standard: ISO 12312...

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CA$63.00 - CA$63.00
CA$63.00
CA$63.00 - CA$63.00
CA$63.00

Safe White-Light Solar Filtration

Every safe method blocks the sunlight before it enters the telescope, or diverts almost all of its energy out of the optical path. Nothing at the eyepiece end is acceptable.

  • Full-aperture film filters: Metallized polymer film in a cell fitted over the objective, giving a neutral or slightly blue-white solar image at very low cost.
  • Full-aperture glass filters: Coated optical glass, more durable and often giving a warmer image, at higher cost and weight.
  • Herschel wedges: For refractors only, diverting the great majority of solar energy out of the back of the wedge and passing a small fraction to the eyepiece with additional filtration.
  • Solar finders: Pinhole or projection finders that let you aim safely, since an unfiltered optical finder is itself a hazard.
  • Cell fit and security: A filter that can be lifted off by wind is a serious risk. Proper cells fit snugly and are secured, not balanced in place.
  • Aperture stops: Off-axis stops for large telescopes, reducing aperture and heat load while improving the image in daytime seeing.

Why Choose David Astro for White-Light Solar Filters

Authenticity and correct fit are safety requirements here, not preferences.

  • Genuine filters only: As an authorized dealer we supply manufacturer product with verified coatings, which matters in a category where counterfeit solar film has circulated.
  • Front-mounted, full-aperture, always: We do not supply eyepiece-end solar filters under any circumstances, because they sit where the telescope has concentrated the full solar energy.
  • Fit measured properly: We size the cell to your telescope's actual outer diameter including any dew shield, so it seats securely and cannot be dislodged.
  • Herschel wedge suitability checked: Wedges are for unobstructed refractors only, and we confirm your telescope is appropriate before supplying one.
  • Ships from Canada: In-stock filters delivered domestically without duties or brokerage fees.

White-Light Solar Filters in Canada — Frequently Asked Questions

How do I check a solar filter is still safe?
Hold it up to a bright lamp and look for pinholes, scratches, creases or coating separation. Any visible defect means replacement. Never repair a solar filter with tape.
Film or glass?
Film gives excellent image quality for very little money and is lighter on the front of the tube. Glass is more durable and less easily damaged in handling. Both are safe when genuine and undamaged.
Can I use a Herschel wedge on my Schmidt-Cassegrain?
No. Herschel wedges are for unobstructed refractors only. In a catadioptric or reflector, the concentrated energy inside the closed tube can cause damage before it ever reaches the wedge.
Do I need a special finder?
Yes. An unfiltered finder scope is a serious hazard when pointed at the Sun. Use a pinhole or shadow-projection solar finder, or cap the finder entirely and aim by the telescope's shadow.

Observing the Sun safely?

Tell us your telescope and we will confirm the correct filter and fit. Genuine product, Canadian stock.