SODIUM Quark filter
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Details
The Sodium D-Line Quark is a compact, all-in-one solar filter designed for refractor telescopes with focal ratios from f/4 to f/8. It transforms your telescope into a specialized instrument to explore the Sun's intricate details, including sunspots, granulation, and flare footprints, by isolating the bright Sodium D spectral line at 5890Å.
Ideal for amateur astronomers seeking sharp, high-contrast solar views, this device simplifies setup by integrating multiple optical elements into a single eyepiece-sized unit that fits directly into your diagonal. Just add a standard eyepiece, power it up, and enjoy stunning solar observations.
Optimized Optical Design
This Quark features a custom 4.2x telecentric barlow lens that enhances image flatness and sharpness specifically at the Sodium D wavelength. The integrated blocking filter and baffling system improve contrast, revealing fine solar features with remarkable clarity.
Effortless Integration
Its combined adapter, snout, and filter assembly eliminate the need for additional components, allowing quick insertion into 1.25" or 2" diagonals. The brass compression ring safeguards eyepieces, while the lightweight construction maintains optical balance.
Power Efficient and Portable
Designed for low power consumption, the Quark runs off standard USB 5V power and includes an AC adapter with international plugs. An optional compact battery pack enables extended field use without tethering to mains power.
Enhanced Solar Phenomena Viewing
The Sodium D-line reveals solar features that are brighter and easier to observe than those seen in Calcium or Hydrogen-alpha light. This includes high-resolution sunspot details and the early signatures of solar flares, providing a unique window into solar activity.
Safety and Compatibility
For safe operation, the use of a suitable Energy Rejection Filter (ERF) is recommended, especially for larger apertures. This Quark is compatible with yellow glass ERFs but not with red glass variants, ensuring optimal spectral transmission.
Specifications
| Manufacturer Part Number | DSZSD |
|---|---|
| Filter Type | Narrowband Sodium D-Line |
| Wavelength | 5890 Å (D2 line) |
| Bandpass | Approximately 0.5 Å or narrower |
| Optical Configuration | Integrated 4.2X telecentric barlow lens, fully baffled |
| Blocking Filter Diameter | 12 mm |
| Clear Filter Aperture | 21 mm |
| Input Size | 1.25" or 2.0" combo nosepiece with safety indent slot |
| Output Size | Standard 1.25" eyepiece drawtube (optional 2" holder available) |
| Power Requirements | USB 5V, 1.5A; includes 90-240V AC adapter with international plugs |
| Optional Accessories | 8-hour battery pack, T-mount and C-mount adapters |
| Compatibility | Best with f/4 to f/8 refractors; compatible with yellow glass ERFs |
| Warranty | 5 years (US) |
| Storage | Includes twist-case for protection |
Manuals & Documents
Manual
Materials + Care
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Shipping + Returns
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The Sodium D-Line Quark is a compact, all-in-one solar filter designed for refractor telescopes with focal ratios from f/4 to f/8. It transforms your telescope into a specialized instrument to explore the Sun's intricate details, including sunspots, granulation, and flare footprints, by isolating the bright Sodium D spectral line at 5890Å.
Ideal for amateur astronomers seeking sharp, high-contrast solar views, this device simplifies setup by integrating multiple optical elements into a single eyepiece-sized unit that fits directly into your diagonal. Just add a standard eyepiece, power it up, and enjoy stunning solar observations.
Optimized Optical Design
This Quark features a custom 4.2x telecentric barlow lens that enhances image flatness and sharpness specifically at the Sodium D wavelength. The integrated blocking filter and baffling system improve contrast, revealing fine solar features with remarkable clarity.
Effortless Integration
Its combined adapter, snout, and filter assembly eliminate the need for additional components, allowing quick insertion into 1.25" or 2" diagonals. The brass compression ring safeguards eyepieces, while the lightweight construction maintains optical balance.
Power Efficient and Portable
Designed for low power consumption, the Quark runs off standard USB 5V power and includes an AC adapter with international plugs. An optional compact battery pack enables extended field use without tethering to mains power.
Enhanced Solar Phenomena Viewing
The Sodium D-line reveals solar features that are brighter and easier to observe than those seen in Calcium or Hydrogen-alpha light. This includes high-resolution sunspot details and the early signatures of solar flares, providing a unique window into solar activity.
Safety and Compatibility
For safe operation, the use of a suitable Energy Rejection Filter (ERF) is recommended, especially for larger apertures. This Quark is compatible with yellow glass ERFs but not with red glass variants, ensuring optimal spectral transmission.
| Manufacturer Part Number | DSZSD |
|---|---|
| Filter Type | Narrowband Sodium D-Line |
| Wavelength | 5890 Å (D2 line) |
| Bandpass | Approximately 0.5 Å or narrower |
| Optical Configuration | Integrated 4.2X telecentric barlow lens, fully baffled |
| Blocking Filter Diameter | 12 mm |
| Clear Filter Aperture | 21 mm |
| Input Size | 1.25" or 2.0" combo nosepiece with safety indent slot |
| Output Size | Standard 1.25" eyepiece drawtube (optional 2" holder available) |
| Power Requirements | USB 5V, 1.5A; includes 90-240V AC adapter with international plugs |
| Optional Accessories | 8-hour battery pack, T-mount and C-mount adapters |
| Compatibility | Best with f/4 to f/8 refractors; compatible with yellow glass ERFs |
| Warranty | 5 years (US) |
| Storage | Includes twist-case for protection |
Manual
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