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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.

Solar Astronomy

The Sun is the only object in astronomy that changes visibly within an hour, and the only one that can permanently damage your eyes in a fraction of a second. Done with proper equipment, solar observing is the most accessible branch of the hobby — no dark sky, no late night, no travel. David Astro carries solar astronomy products in Canada: hydrogen-alpha telescopes, white-light filters, Calcium-K modules, wedges and dedicated solar accessories, in Canadian inventory and shipped domestically.

Safety here is absolute rather than a matter of degree, and we will not sell an unsafe combination. If you are unsure whether a filter or setup is appropriate, ask us before you point anything at the Sun.

Filters

$3,495.00 - $3,495.00
$3,495.00
$3,495.00 - $3,495.00
$3,495.00

Lunt LS100MT H-Alpha Solar Telescope - Standard Kit

LSS-LS100MT-Standard

Aperture: 100mm ED Doublet Focal Length: 714mm Focal Ratio: f/7.14 Bandpass: <0.4Å (Single-Stack) Blocking Filter: B1200 in 2" Diagonal Focuser...

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$3,495.00 - $3,495.00
$3,495.00
$3,495.00 - $3,495.00
$3,495.00
$4,995.00 - $4,995.00
$4,995.00
$4,995.00 - $4,995.00
$4,995.00

Lunt LS100MT Modular Solar Telescope - Pressure Tuned

LSS-LS100MT/B1800R&P

100mm ED f/7 H-alpha refractor 700mm focal length Pressure tuning Supports B12...

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$4,995.00 - $4,995.00
$4,995.00
$4,995.00 - $4,995.00
$4,995.00
$9,995.00 - $9,995.00
$9,995.00
$9,995.00 - $9,995.00
$9,995.00

Lunt LS130MT H-Alpha Solar Telescope - Flagship Kit

LSS-LS130MT-Flagship

Aperture: 130mm ED Triplet Focal Length: 910mm Focal Ratio: f/7 Bandpass (Double-Stacked): <0.28Å Tuning: Internal Pressure-Tuned Etalons (Dopp...

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$9,995.00 - $9,995.00
$9,995.00
$9,995.00 - $9,995.00
$9,995.00
$7,599.00 - $9,348.00
$7,599.00 - $9,348.00
$7,599.00 - $9,348.00
$7,599.00

Lunt LS130MT Modular Solar Telescope - Pressure Tuned

Options available

130mm Aperture Triplet ED Objective Lens Modular design for both H-Alpha solar and nighttime astronomical viewing Internal, unobstructed H-Alpha e...

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$7,599.00 - $9,348.00
$7,599.00 - $9,348.00
$7,599.00 - $9,348.00
$7,599.00
$7,849.00 - $10,522.00
$7,849.00 - $10,522.00
$7,849.00 - $10,522.00
$7,849.00

Lunt LS152THa Solar Telescope - Pressure Tuned

Options available

Dedicated Hydrogen-Alpha Solar Telescope Doppler True Pressure Tuning System Internal High Definition (HD) Etalon 100% Unobstructed Optical Design...

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$7,849.00 - $10,522.00
$7,849.00 - $10,522.00
$7,849.00 - $10,522.00
$7,849.00
$39,995.00 - $39,995.00
$39,995.00
$39,995.00 - $39,995.00
$39,995.00

Lunt LS230THa Double Stack Solar Telescope - Pressure Tuned

LSS-LS230THa/B3400

230mm Unobstructed Aperture 1,610mm Focal Length (f/7) Internal Double-Stack Etalon System (~0.30Å Bandpass) Dual PC-USB Pressure Tuner Controller...

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$39,995.00 - $39,995.00
$39,995.00
$39,995.00 - $39,995.00
$39,995.00
$83,999.00 - $107,995.00
$83,999.00 - $107,995.00
$83,999.00 - $107,995.00
$83,999.00

Lunt LS300THa Solar Telescope - Pressure Tuned

Options available

300 mm Aperture f/7 Focal Ratio Internal, Unobstructed Etalon System <0.65 Angstrom Bandpass (Single Stack) PC-USB Controlled True Doppler Pres...

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$83,999.00 - $107,995.00
$83,999.00 - $107,995.00
$83,999.00 - $107,995.00
$83,999.00
$1,095.00 - $1,095.00
$1,095.00
$1,095.00 - $1,095.00
$1,095.00

Lunt LS40THa H-Alpha Solar Telescope - Enhanced Kit

LSS-LS40THa-Enhanced
2 in stock

40mm Aperture Dedicated Hydrogen-Alpha Solar Telescope Internal Etalon with Tilt-Tuning for <0.55Å Bandpass Enhanced Kit with Upgraded 1:1 Rack...

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$1,095.00 - $1,095.00
$1,095.00
$1,095.00 - $1,095.00
$1,095.00
$1,795.00 - $1,795.00
$1,795.00
$1,795.00 - $1,795.00
$1,795.00

Lunt LS40THa H-Alpha Solar Telescope - Premium PLUS Kit

LSS-LS40THa-Premium
1 in stock

40mm Dedicated H-Alpha Solar Telescope Internal Double-Stack System with ≤0.35Å Bandpass B600 Blocking Filter for Full-Disk Views & Imaging In...

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$1,795.00 - $1,795.00
$1,795.00
$1,795.00 - $1,795.00
$1,795.00
$995.00 - $995.00
$995.00
$995.00 - $995.00
$995.00

Lunt LS40THa H-Alpha Solar Telescope - Standard Kit

LSS-LS40THa-Standard-V1

40mm Aperture Dedicated Hydrogen-Alpha Solar Telescope ≤0.65Å Bandpass Front-Mounted Tilt-Tuned Etalon 6mm (B600) Blocking Filter for Visual and I...

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$995.00 - $995.00
$995.00
$995.00 - $995.00
$995.00
$1,395.00 - $1,395.00
$1,395.00
$1,395.00 - $1,395.00
$1,395.00

Lunt LS50THa H-Alpha Solar Telescope - Enhanced Kit

LSS-LS50THa-Enhanced

Aperture: 50mm Bandpass: <0.6Å Single-Stack Tuning: Doppler True Tuning (Pressure Tuner) Focuser: 1:1 Rack & Pinion Blocking Filter: B600 (...

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$1,395.00 - $1,395.00
$1,395.00
$1,395.00 - $1,395.00
$1,395.00
$2,095.00 - $2,095.00
$2,095.00
$2,095.00 - $2,095.00
$2,095.00

Lunt LS50THa H-Alpha Solar Telescope - Premium PLUS Kit

LSS-LS50THa-Premium

Aperture: 50mm System Bandpass: <0.30Å (Double-Stacked) Tuning: Internal Pressure Tuner (Doppler True Tuning) Blocking Filter: B600 in 1.25" Di...

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$2,095.00 - $2,095.00
$2,095.00
$2,095.00 - $2,095.00
$2,095.00
$1,195.00 - $1,195.00
$1,195.00
$1,195.00 - $1,195.00
$1,195.00

Lunt LS50THa H-Alpha Solar Telescope - Standard Kit

LSS-LS50THa-Standard

Aperture: 50mm Focal Length: 350mm Focal Ratio: f/7 Bandpass: <0.6Å Tuning: Internal Pressure Tuner (Doppler True Tuning) Blocking Filter: B400...

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$1,195.00 - $1,195.00
$1,195.00
$1,195.00 - $1,195.00
$1,195.00
$995.00 - $1,095.00
$995.00 - $1,095.00
$995.00 - $1,095.00
$995.00

Lunt LS50THa Ha Telescope

Options available

50mm Dedicated Hydrogen-Alpha Solar Telescope Internal Pressure Tuner (PT) System B600 Blocking Filter for Visual Use Rack & Pinion Focuser Id...

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$995.00 - $1,095.00
$995.00 - $1,095.00
$995.00 - $1,095.00
$995.00
$1,995.00 - $1,995.00
$1,995.00
$1,995.00 - $1,995.00
$1,995.00

Lunt LS60MT H-Alpha Solar Telescope - Enhanced Kit

LSS-LS60MT-Enhanced

Aperture: 60mm Bandpass: ≤0.4Å (Single Stack) Tuning: Internal Pressure-Tuning (Doppler True Tuning) Blocking Filter: B1200 (12mm) Focuser: Rack &...

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$1,995.00 - $1,995.00
$1,995.00
$1,995.00 - $1,995.00
$1,995.00
$2,995.00 - $2,995.00
$2,995.00
$2,995.00 - $2,995.00
$2,995.00

Lunt LS60MT H-Alpha Solar Telescope - Premium PLUS Kit

LSS-LS60MT-Premium

Aperture: 60mm Focal Length: 420mm (F/7) Bandpass (Double-Stack): <0.28Å Tuning: Internal Pressure-Tuned Etalon (Doppler True Tuning) Blocking ...

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$2,995.00 - $2,995.00
$2,995.00
$2,995.00 - $2,995.00
$2,995.00
$1,795.00 - $1,795.00
$1,795.00
$1,795.00 - $1,795.00
$1,795.00

Lunt LS60MT H-Alpha Solar Telescope - Standard Kit

LSS-LS60MT-Standard

Aperture: 60mm Bandpass: ≤0.4Å (Single Stack) Tuning: Internal Pressure-Tuning (Doppler True Tuning) Blocking Filter: B1200 (12mm) Focuser: Rack &...

View full details
$1,795.00 - $1,795.00
$1,795.00
$1,795.00 - $1,795.00
$1,795.00
$1,595.00 - $1,595.00
$1,595.00
$1,595.00 - $1,595.00
$1,595.00

Lunt LS60MT Modular Solar Telescope - Pressure Tuned

LSS-LS60MT/B600R&P

60mm Aperture 600mm Focal Length (f/10) Pressure Tuned Etalon (H-alpha) <0.7 Angstrom Bandpass (Single Stack) B600 Blocking Filter Modular Desi...

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$1,595.00 - $1,595.00
$1,595.00
$1,595.00 - $1,595.00
$1,595.00
$3,595.00 - $3,595.00
$3,595.00
$3,595.00 - $3,595.00
$3,595.00

Lunt LS80MT H-Alpha Solar Telescope - Enhanced Kit

LSS-LS80MT-Enhanced

Aperture: 80mm ED Doublet Focal Length: 560mm Focal Ratio: f/7 Bandpass: <0.4 Å (Single-Stack) Blocking Filter: B1800 in 2" Diagonal Focuser: D...

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$3,595.00 - $3,595.00
$3,595.00
$3,595.00 - $3,595.00
$3,595.00
$4,695.00 - $4,695.00
$4,695.00
$4,695.00 - $4,695.00
$4,695.00

Lunt LS80MT H-Alpha Solar Telescope - Premium PLUS Kit

LSS-LS80MT-Premium

Aperture: 80mm ED Doublet Focal Length: 560mm Focal Ratio: f/7 System Bandpass: <0.28Å (Double-Stacked) Tuning: Pressure-Tuned Doppler True Tun...

View full details
$4,695.00 - $4,695.00
$4,695.00
$4,695.00 - $4,695.00
$4,695.00
$3,295.00 - $3,295.00
$3,295.00
$3,295.00 - $3,295.00
$3,295.00

Lunt LS80MT H-Alpha Solar Telescope - Standard Kit

LSS-LS80MT-Standard

Aperture: 80mm ED Doublet Focal Length: 560mm Focal Ratio: F/7 Bandpass: ≤0.4 Ångström (Single-Stack) Tuning: Internal Pressure Tuner (Doppler Tru...

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$3,295.00 - $3,295.00
$3,295.00
$3,295.00 - $3,295.00
$3,295.00
$2,595.00 - $3,495.00
$2,595.00 - $3,495.00
$2,595.00 - $3,495.00
$2,595.00

Lunt LS80MT Modular Solar Telescope - Pressure Tuned

Options available

80mm ED f/7 H-alpha refractor 560mm focal length Pressure tuning Supports B120...

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$2,595.00 - $3,495.00
$2,595.00 - $3,495.00
$2,595.00 - $3,495.00
$2,595.00
$48.95 - $48.95
$48.95
$48.95 - $48.95
$48.95

Lunt SunLock Solar Alignment Finder

LSS-003-385

Red Dot Sun Finder for safe, precise solar alignment Glass projection plane provides a clear target Internal 3-point set screw system locks alignm...

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$48.95 - $48.95
$48.95
$48.95 - $48.95
$48.95
Orion Optics UK OMC-200 Full-Aperture Solar Filter (Screw Fitting)
$550.74 - $550.74
$550.74
$550.74 - $550.74
$550.74

Orion Optics UK OMC-200 Full-Aperture Solar Filter (Screw Fitting)

OOUK-OMC200-FULL-APERTURE-SOLAR-FILTER

Full-aperture solar filter for Orion Optics UK OMC-200 telescopes Secure screw-on fitting prevents accidental detachment Military-grade aluminum c...

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$550.74 - $550.74
$550.74
$550.74 - $550.74
$550.74

Ways to Observe the Sun Safely

Different wavelengths reveal completely different Suns. White light shows the photosphere and sunspots; hydrogen-alpha shows the chromosphere with prominences and filaments; Calcium-K shows the plage network above it.

  • White-light filters: Full-aperture film or glass filters fitted in front of the objective, showing sunspots, granulation and faculae. They must always be at the front, never at the eyepiece.
  • Hydrogen-alpha telescopes: Dedicated instruments with sub-angstrom etalons that isolate the 656.28 nm line, revealing prominences at the limb and filaments and flares on the disc.
  • Solar filter modules: Etalon and blocking filter assemblies that convert a suitable refractor into a hydrogen-alpha instrument.
  • Calcium-K filters: Narrow filters at 393 nm showing the chromospheric network, best captured with a camera since the wavelength is at the edge of human sensitivity.
  • Herschel wedges: High-contrast white-light observing for refractors, diverting most solar energy out of the optical path rather than reflecting it back.
  • Solar accessories: Finders, blocking filters, tuning aids and mounting hardware designed for daytime work.

Why Choose David Astro for Solar Astronomy

This is the one category where getting the recommendation wrong has consequences beyond a disappointing view.

  • Safety verified, not assumed: We confirm that any filter is full-aperture and front-mounted, and we will not supply eyepiece-end solar filters, which can fail catastrophically under concentrated heat.
  • Aperture limits for etalon modules: Front-mounted etalons have maximum aperture and focal ratio limits, and exceeding them risks both poor performance and thermal damage. We check your telescope against them.
  • Authorized dealer: Genuine solar equipment with full manufacturer warranty — critically important in a category where counterfeit filters exist.
  • Canadian stock: Ships from Canada, with no duties or brokerage fees for Canadian orders.
  • Inspection and service: We can inspect solar filters for pinholes and coating damage, which should be done before every season.

Solar Astronomy in Canada — Frequently Asked Questions

Can I use an eyepiece-mounted solar filter?
No. Filters that screw into an eyepiece sit where the telescope has concentrated the Sun's full energy, and they can crack without warning. Only full-aperture filters mounted at the front of the telescope are safe.
White light or hydrogen-alpha first?
White light is far less expensive and shows sunspots and granulation well. Hydrogen-alpha shows prominences and surface activity that white light cannot, and is the more dramatic view, at several times the cost.
How do I know my filter is still safe?
Hold it up to a bright indoor light and look for pinholes, scratches or delamination in the coating. Any visible defect means it should be replaced, not repaired or taped.
Can I observe the Sun in winter?
Yes, and low winter sun means long atmospheric path and often poor seeing, but activity is visible year round. Cold also keeps etalon tuning more stable than a hot summer afternoon does.

Starting with solar observing?

Tell us your telescope and we will confirm a safe, effective setup. Genuine filters, Canadian stock, expert guidance.