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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, 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

$1,095.00 USD - $1,095.00 USD
$1,095.00 USD
$1,095.00 USD - $1,095.00 USD
$1,095.00 USD

Lunt LS40THa H-Alpha Solar Telescope - Enhanced Kit

40mm Aperture Dedicated Hydrogen-Alpha Solar Telescope Front-Mounted Etalon with Tilt-Tuning for 0.45Å Bandpass Enhanced Kit with Upgraded 1:1 Rac...

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

Lunt LS40THa H-Alpha Solar Telescope - Premium PLUS Kit

40mm Dedicated H-Alpha Solar Telescope Front-Mounted Double-Stack System with <0.29Å Bandpass B600 Blocking Filter for Full-Disk Views & Im...

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

Lunt LS40THa H-Alpha Solar Telescope - Standard Kit

40mm Aperture Dedicated Hydrogen-Alpha Solar Telescope 0.45Å Bandpass Front-Mounted Tilt-Tuned Etalon 6mm (B600) Blocking Filter for Visual and Im...

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

Lunt LS50THa H-Alpha Solar Telescope - Enhanced Kit

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

Lunt LS50THa H-Alpha Solar Telescope - Premium PLUS Kit

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

Lunt LS50THa H-Alpha Solar Telescope - Standard Kit

Aperture: 50mm Focal Length: 350mm Focal Ratio: f/7 Bandpass: <0.6Å Tuning: Internal Pressure Tuner (Doppler True Tuning) Blocking Filter: B600...

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

Lunt LS50THa Ha Telescope

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

Lunt LS60MT H-Alpha Solar Telescope - Enhanced Kit

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

Lunt LS60MT H-Alpha Solar Telescope - Premium PLUS Kit

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

Lunt LS60MT H-Alpha Solar Telescope - Standard Kit

Aperture: 60mm Bandpass: ≤0.4Å (Single Stack) Tuning: Internal Pressure-Tuning (Doppler True Tuning) Blocking Filter: B600 (6mm) Focuser: Rack &am...

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$1,795.00 USD - $1,795.00 USD
$1,795.00 USD
$1,795.00 USD - $1,795.00 USD
$1,795.00 USD
$1,595.00 USD - $1,595.00 USD
$1,595.00 USD
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$1,595.00 USD

Lunt LS60MT Modular Solar Telescope - Pressure Tuned

60mm Aperture 420mm Focal Length (f/7) Pressure Tuned Etalon (H-alpha) 0.45 Angstrom Bandpass (Single Stack) B600 Blocking Filter Modular Design f...

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

Lunt LS80MT H-Alpha Solar Telescope - Enhanced Kit

Aperture: 80mm Doublet Focal Length: 560mm Focal Ratio: f/7 Bandpass: <0.4 Å (Single-Stack) Blocking Filter: B1800 (18mm) Focuser: Dual-Speed R...

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

Lunt LS80MT H-Alpha Solar Telescope - Premium PLUS Kit

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

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$4,695.00 USD - $4,695.00 USD
$4,695.00 USD
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$4,695.00 USD
$3,295.00 USD - $3,295.00 USD
$3,295.00 USD
$3,295.00 USD - $3,295.00 USD
$3,295.00 USD

Lunt LS80MT H-Alpha Solar Telescope - Standard Kit

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

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

Lunt LS80MT Modular Solar Telescope - Pressure Tuned

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

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$2,595.00 USD - $3,495.00 USD
$2,595.00 USD - $3,495.00 USD
$2,595.00 USD - $3,495.00 USD
$2,595.00 USD
$995.00 USD - $995.00 USD
$995.00 USD
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$995.00 USD

Lunt PC-USB Pressure Tuner Controller

Automates pressure tuning for any Lunt PT solar telescope Connects and is controlled via a standard USB connection Internal microprocessor compens...

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$995.00 USD - $995.00 USD
$995.00 USD
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$995.00 USD
$48.37 USD - $48.37 USD
$48.37 USD
$48.37 USD - $48.37 USD
$48.37 USD

Lunt SunLock Solar Alignment Finder

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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$48.37 USD - $48.37 USD
$48.37 USD
$48.37 USD - $48.37 USD
$48.37 USD
Orion Optics UK OMC-200 Full-Aperture Solar Filter (Screw Fitting)
$550.74 USD - $550.74 USD
$550.74 USD
$550.74 USD - $550.74 USD
$550.74 USD

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

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 USD - $550.74 USD
$550.74 USD
$550.74 USD - $550.74 USD
$550.74 USD
$799.00 USD - $799.00 USD
$799.00 USD
$799.00 USD - $799.00 USD
$799.00 USD

Player One Apollo 428M MAX Mono Solar Camera

Features a Sony IMX428 1.1-inch monochrome CMOS sensor Delivers 7.1 Megapixel resolution (3216×2208) for detailed solar imaging 4.5μm pixels provi...

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$799.00 USD - $799.00 USD
$799.00 USD
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$999.00 USD - $999.00 USD
$999.00 USD
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$999.00 USD

Player One Apollo 428M MAX Pro Mono Cooled Solar Camera

Sony IMX428 1.1" monochrome CMOS sensor with global shutter 7.1 Megapixel resolution (3216x2208) with 4.5μm pixels High frame rate of 51 FPS at fu...

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$999.00 USD - $999.00 USD
$999.00 USD
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$999.00 USD
$499.00 USD - $499.00 USD
$499.00 USD
$499.00 USD - $499.00 USD
$499.00 USD

Player One Apollo-C IMX174 Color Solar Camera

2.3 Megapixel Sony IMX174 color CMOS sensor Global shutter design eliminates motion artifacts from atmospheric turbulence Captures up to 164 FPS a...

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$499.00 USD - $499.00 USD
$499.00 USD
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$499.00 USD
$499.00 USD - $499.00 USD
$499.00 USD
$499.00 USD - $499.00 USD
$499.00 USD

Player One Apollo-M IMX174 Mono Solar Camera

Features the 2.3MP Sony IMX174 monochrome CMOS sensor Global shutter design eliminates motion artifacts from atmospheric turbulence Achieves a max...

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$499.00 USD - $499.00 USD
$499.00 USD
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$499.00 USD
$599.00 USD - $599.00 USD
$599.00 USD
$599.00 USD - $599.00 USD
$599.00 USD

Player One Apollo-M MAX IMX432 Mono Solar Camera

1.1" Sony IMX432 Monochrome CMOS Sensor 9µm Pixel Size 100,000 e- Full Well Capacity 126 FPS at Full Resolution (1608x1104) Global Shutter for Dis...

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$599.00 USD - $599.00 USD
$599.00 USD
$599.00 USD - $599.00 USD
$599.00 USD
$799.00 USD - $799.00 USD
$799.00 USD
$799.00 USD - $799.00 USD
$799.00 USD

Player One Apollo-M MAX Pro Mono IMX432 Cooled Solar Camera

1.7 Megapixel Sony IMX432 Mono Sensor Large 9µm Pixel Size Massive 100k e- Full Well Capacity Global Shutter for Distortion-Free Imaging 126 FPS a...

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$799.00 USD - $799.00 USD
$799.00 USD
$799.00 USD - $799.00 USD
$799.00 USD

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.
  • 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.