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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.

Modules solaires

A solar filter module turns a telescope you already own into a hydrogen-alpha instrument. An etalon at the front, a blocking filter at the back, and a suitable refractor between them gives you prominences and surface detail without buying a second dedicated telescope. David Astro carries solar modules in Canada, held in Canadian stock.

Not every telescope is suitable, and aperture and focal ratio limits are safety-relevant as well as performance-relevant. Tell us your telescope and we will confirm compatibility before anything ships.

Filtres

$339.00 - $339.00
$339.00
$339.00 - $339.00
$339.00

Antlia Hélioscope de Herschel pour imagerie avec filtre CaK 3nm - 1.25"

ANT-CAK-WEDGE
1 en stock

Antlia Imaging Herschel Wedge avec prisme de 35 mm et filtre solaire Cak 3 nm de 1,25'' L'Antlia Solar Wedge (conception Herschel Wedge) rempla...

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$339.00 - $339.00
$339.00
$339.00 - $339.00
$339.00
$335.00 - $335.00
$335.00
$335.00 - $335.00
$335.00

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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$335.00 - $335.00
$335.00
$335.00 - $335.00
$335.00
$496.00 - $2,559.00
$496.00 - $2,559.00
$496.00 - $2,559.00
$496.00

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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$496.00 - $2,559.00
$496.00 - $2,559.00
$496.00 - $2,559.00
$496.00
Baader Planetarium D-ERF Energy Rejection Filter - 290mm Aperture, 20mm Thickness
$8,290.00 - $8,290.00
$8,290.00
$8,290.00 - $8,290.00
$8,290.00

Baader Planetarium D-ERF Energy Rejection Filter - 290mm Aperture, 20mm Thickness

BAA-2965000D

290mm Clear Aperture 20mm Thick Glass Substrate IR-Cut Dielectric Coating Pre-Filter for H-Alpha Solar Systems Description FAQ Specifications I...

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$8,290.00 - $8,290.00
$8,290.00
$8,290.00 - $8,290.00
$8,290.00
$1,295.00 - $1,295.00
$1,295.00
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$1,295.00

Daystar Filtre Solaire Calcium Quark

DAY-DSZCH

Daystar Instruments QUARK est le premier "Oculaire" Calcium MODÈLE CALCIUM H pour réfracteurs à rapport focal F/7 ou plus long Cette nouvelle conc...

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$1,295.00 - $1,295.00
$1,295.00
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$1,295.00
$1,495.00 - $1,495.00
$1,495.00
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$1,495.00

Daystar Filtre Solaire Camera Quark Chromosphere

Options available

Transforme les objectifs SLR de style Canon ou Nikon ordinaires en un télescope solaire Hydrogen Alpha. Il peut être utilisé avec un appareil photo...

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$1,495.00 - $1,495.00
$1,495.00
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$1,495.00
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$1,495.00

Daystar Filtre Solaire Camera Quark Prominence

Options available

Transforme les objectifs SLR de style Canon ou Nikon ordinaires en un télescope solaire Hydrogen Alpha. Il peut être utilisé avec un appareil phot...

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$1,495.00 - $1,495.00
$1,495.00
$1,495.00 - $1,495.00
$1,495.00
Daystar Combo Combo Kit - Barlow Set (2.8X & 4.3X)
$499.00 - $2,495.00
$499.00 - $2,495.00
$499.00 - $2,495.00
$499.00

Daystar Combo Combo Kit

Options available
1 variants in stock

Modular Combo Quark accessory system — choose the kit that fits your setup Two telecentric barlows (2.8X and 4.3X) with 13 internal baffles each T...

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$499.00 - $2,495.00
$499.00 - $2,495.00
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$499.00
$1,295.00 - $1,295.00
$1,295.00
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$1,295.00

Daystar Filtre Solaire Combo Quark Chromosphere

DAY-DSZCC
1 en stock

Cette nouvelle conception tout-en-un associe des composants de haute qualité d'adaptateurs, de museaux et de filtre alpha à hydrogène Daystar en u...

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$1,295.00 - $1,295.00
$1,295.00
$1,295.00 - $1,295.00
$1,295.00
$1,295.00 - $1,295.00
$1,295.00
$1,295.00 - $1,295.00
$1,295.00

Daystar Filtre Solaire Combo Quark Prominence

DAY-DSZCP

Cette nouvelle conception tout-en-un associe des composants de haute qualité d'adaptateurs, de museaux et de filtre alpha à hydrogène Daystar en un...

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$1,295.00 - $1,295.00
$1,295.00
$1,295.00 - $1,295.00
$1,295.00
$550.00 - $1,645.00
$550.00 - $1,645.00
$550.00 - $1,645.00
$550.00

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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$550.00 - $1,645.00
$550.00 - $1,645.00
$550.00 - $1,645.00
$550.00
$550.00 - $1,195.00
$550.00 - $1,195.00
$550.00 - $1,195.00
$550.00

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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$550.00 - $1,195.00
$550.00 - $1,195.00
$550.00 - $1,195.00
$550.00
$1,495.00 - $1,495.00
$1,495.00
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$1,495.00

Daystar Filtre Solaire Magnesium Quark

DAY-DSZMG

À la demande générale, nous introduisons une version de la ligne MgI b2 du Quark, pour une utilisation dans les réfracteurs F/4-F/9. Magnésium, un...

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$1,495.00 - $1,495.00
$1,495.00
$1,495.00 - $1,495.00
$1,495.00
$13,990.00 - $13,990.00
$13,990.00
$13,990.00 - $13,990.00
$13,990.00

Daystar Filtre Solaire Quantum Calcium II H - 5Å Grade PE

DAY-CH5AUNI

DayStar est fier de proposer des systèmes de filtration Calcium H (3969Å) et deux Calcium K-line (3933,7Å). Traditionnellement, la recherche unive...

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$13,990.00 - $13,990.00
$13,990.00
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$13,990.00
$17,990.00 - $17,990.00
$17,990.00
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$17,990.00

Daystar Filtre Solaire Quantum Calcium II K - 2Å Grade PE

DAY-CK2AUNI

DayStar est fier de proposer des systèmes de filtration Calcium H (3969Å) et deux Calcium K-line (3933,7Å). Traditionnellement, la recherche unive...

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$17,990.00 - $17,990.00
$17,990.00
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$17,990.00
$11,990.00 - $35,990.00
$11,990.00 - $35,990.00
$11,990.00 - $35,990.00
$11,990.00

Daystar Filtre Solaire Quantum H-alpha

Options available

Notre boîtier Quantum de précision intègre TOUTES les fonctionnalités souhaitées pour l'astronome solaire d'aujourd'hui... et plus encore. Le fonc...

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$11,990.00 - $35,990.00
$11,990.00 - $35,990.00
$11,990.00 - $35,990.00
$11,990.00
Daystar Quantum H-alpha Solar Filter - SE Grade - 0.7-0.9Å
$5,195.00 - $8,995.00
$5,195.00 - $8,995.00
$5,195.00 - $8,995.00
$5,195.00

Daystar Quantum H-alpha Solar Filter - SE Grade

Options available

Choice of 0.7-0.9Å or 0.3-0.5Å Tunable Hydrogen-Alpha Bandpass SE (Standard Edition) Grade for Amateur and Academic Use Live LCD Wavelength Readou...

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$5,195.00 - $8,995.00
$5,195.00 - $8,995.00
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$5,195.00
$17,995.00 - $17,995.00
$17,995.00
$17,995.00 - $17,995.00
$17,995.00

Daystar Filtre Solaire Quantum Helium D3 - 0.3Å Grade PE

DAY-HeD.3PE

Filtre Solaire Quantique PE 0.3Å, gamme Hélium D3. À utiliser avec les réfracteurs, les SCT, les Maksutov. Comprend des plaques avant et arrière, ...

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$17,995.00 - $17,995.00
$17,995.00
$17,995.00 - $17,995.00
$17,995.00
$17,990.00 - $17,990.00
$17,990.00
$17,990.00 - $17,990.00
$17,990.00

Daystar Filtre Solaire Quantum Sodium D - 0.4Å Grade PE

DAY-NAD.4UNI

Filtre solaire quantique PE 0,4 Å, ligne Sodium D. À utiliser avec les réfracteurs, les SCT, les Maksutov. Comprend des plaques avant et arrière, ...

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$17,990.00 - $17,990.00
$17,990.00
$17,990.00 - $17,990.00
$17,990.00
$1,295.00 - $1,295.00
$1,295.00
$1,295.00 - $1,295.00
$1,295.00

Daystar Filtre Solaire Quark Chromosphere

DAY-DSZ4C
5 en stock

Transformez votre lunette astronomique en télescope H-alpha ! Lentille de Barlow télécentrique intégrée 4,2X Étalon de 0,3 Å à 0,5 ...

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$1,295.00 - $1,295.00
$1,295.00
$1,295.00 - $1,295.00
$1,295.00
$2,595.00 - $2,595.00
$2,595.00
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$2,595.00

Daystar Quark Combo Gemini Chrom/Prom Switchable Solar Filter

DAY-DSZGC

Instantly Switchable Prominence & Chromosphere Views Contains Two Internal Fabry-Perot Etalon Filters Optimized for Telescopes from f/15 to f/...

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$2,595.00 - $2,595.00
$2,595.00
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$2,595.00
$1,295.00 - $1,295.00
$1,295.00
$1,295.00 - $1,295.00
$1,295.00

Daystar Filtre Solaire Quark Chromosphere pour Questar

DAY-DSZQC

Cette nouvelle conception tout-en-un associe des composants de haute qualité de tous les adaptateurs, embouts et filtre hydrogène alpha Daystar en...

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$1,295.00 - $1,295.00
$1,295.00
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$1,295.00
$1,295.00 - $1,295.00
$1,295.00
$1,295.00 - $1,295.00
$1,295.00

Daystar Filtre Solaire Quark Prominence pour Questar

DAY-DSZQP

Cette nouvelle conception tout-en-un associe des composants de haute qualité de tous les adaptateurs, embouts et filtre hydrogène alpha Daystar en ...

Afficher tous les détails
$1,295.00 - $1,295.00
$1,295.00
$1,295.00 - $1,295.00
$1,295.00
$2,595.00 - $2,595.00
$2,595.00
$2,595.00 - $2,595.00
$2,595.00

Daystar Filtre Solaire Quark Gemini Chrom / Prom

DAY-DSZ4G
1 en stock

Filtre Daystar Quark Gemini H alpha : Contient à la fois des filtres passe-bande Prominence et Chromosphere pour une commutation instantanée par g...

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$2,595.00 - $2,595.00
$2,595.00
$2,595.00 - $2,595.00
$2,595.00

How a Solar Filter Module Works

Two components do the work. The etalon defines a very narrow passband around the hydrogen-alpha line; the blocking filter removes everything the etalon lets through elsewhere in the spectrum, including the infrared that would otherwise reach your eye.

  • Front-mounted etalons: Fitted ahead of the objective, with a maximum aperture and minimum focal ratio specified by the manufacturer. Exceeding either degrades performance and can cause heat damage.
  • Blocking filters: Fitted at the eyepiece end, sized by their clear aperture. The size determines usable field and whether full-disc imaging is possible.
  • Tuning: Tilt or pressure adjustment shifts the passband to favour disc detail or limb prominences during a session.
  • Focal ratio requirements: Etalons perform best within a specified range, commonly around f/7 and slower. Faster telescopes may need a telecentric amplifier to present the correct light cone.
  • Telecentric amplifiers: Present parallel light to the etalon rather than a converging cone, which is what allows a fast refractor to be used correctly.
  • Double-stacking: A second etalon narrows the band further for markedly better surface contrast, with a corresponding loss of brightness.

Why Choose David Astro for Solar Modules

Compatibility here is not a matter of whether the parts thread together. It is a safety and performance specification.

  • Telescope suitability verified: We check your aperture and focal ratio against the module's stated limits before supplying anything, because exceeding them risks thermal damage.
  • Refractors only, and we say so: Front-mounted etalons are for unobstructed refractors. We will not supply a module for a reflector or catadioptric where concentrated heat inside the tube is a hazard.
  • Blocking filter sized to your intent: Full-disc imaging with a larger sensor needs a larger blocking filter, and we check that against your camera.
  • Authorized dealer: Genuine equipment with full manufacturer warranty, which is a safety requirement in solar filtration.
  • Ships from Canada: No duties or brokerage fees for Canadian buyers.

Solar Modules in Canada — Frequently Asked Questions

Can I fit a solar module to my telescope?
Only if it is an unobstructed refractor within the module's specified aperture and focal ratio range. Tell us the exact telescope and we will confirm before you order.
Why does focal ratio matter for an etalon?
An etalon's passband shifts with the angle of incoming light. A converging cone from a fast telescope smears the passband and reduces contrast. A telecentric amplifier restores a parallel cone.
What blocking filter size do I need?
Larger blocking filters pass a wider field. Visual use and small sensors are generally fine with a smaller one; full-disc imaging on a larger sensor needs more clear aperture.
Is a module cheaper than a dedicated solar telescope?
Often, if you already own a suitable refractor, and it gives you a telescope that does both jobs. A dedicated instrument is optimized for the wavelength and is simpler to set up.

Converting a refractor for solar?

Send us the exact telescope and we will confirm compatibility and specify the module. Canadian stock, worldwide shipping.