Add a solar observation capability to your SCT, Maksutov, or long-focal-length refractor compatible with the Quark H-alpha Combo. Please specify whether you want the Chromosphere or Prominence version when ordering; does not include a built-in Barlow lens; focal ratio and energy rejection must be confirmed.
The Quark Combo brings the simplicity and safety of H-alpha solar observation to owners of SCTs, Maksutovs, and long-focal-length refractors (F/15–F/30). Choose the version Prominence or Chromosphere for the same price, and benefit from an all-in-one filter that's ready to use, lightweight and compact. Please specify the version when ordering in the appropriate section!
The Quark Combo is an H-alpha "All-In-One" device that integrates :
Important: for SCT and Maksutov, the use of a specific energy rejection filter (ERF) is mandatory for safety and optimum performance.
The Quark Combo adds a new use to an SCT, a Maksutov, or a compatible long-focal-length refractor. You can choose the H-alpha image mode that best suits your needs: Chromosphere for details of the solar disk, or Prominence to highlight solar prominences. To have both modes in the same instrument, check out the Gemini Combo.
The setup depends on the diameter, focal ratio, and design of your instrument. Without a built-in telecentric lens, the Combo may require a suitable telecentric Barlow lens and calls for appropriate energy-rejection filters. Use the DayStar Official Compatibility Checker with the Quark Combo Instructions to check everything.
Visit DayStar Solar Accessories allow you to adapt the connection to the eyepiece or camera: 1.25-inch or 2-inch connectors, T- or C-mounts, and adapters, depending on the model. Thread compatibility, focus extension, and focus must be checked for each combination. Accessories are sold separately.
In astrophotography, a DayStar tilt adapter can help reduce Newton's rings. The results depend on the camera and the settings; see the Manufacturer's installation instructions to choose the right adapter.
DayStar has been developing solar equipment for over 50 years. Whether for an introductory course, an educational activity, or an imaging program, Contact Deep Space Astronomy Please provide the model of your instrument, your camera (if applicable), and your lenses: we'll help you choose a suitable setup and provide a quote.
| Type | H-alpha Combo Quark filter (Prominence or Chromosphere) |
|---|---|
| Compatibility | SCT, Maksutov, F/15-F/30 refractors |
| Eyepiece outlet | Standard 1.25″, 1.25″ snout included + 2° off-axis adapter for ERF |
| Barlow / Optics | No integrated Barlow - 0 power, filter only |
| Blocking filter | Integrated, 25 mm |
| Clear aperture | 21 mm |
| Power supply | USB 5 V 1.5 A, incl. 90-240 V mains adapter |
| Tuning | Wheels for wing shift ±0.5 Å with notches every 0.1 Å; LED status: power, warming, ready, fault |
| Warranty | 5 years |
| Supplied box | Twist-Case for protection and transport |
| Observation | Full disk up to ~1800 mm focal length; no aperture limitation, use with SCT and Maks off-axis ERF |
| Optional accessories | 8h battery pack |
| Criteria | Prominence | Chromosphere |
|---|---|---|
| Bandwidth FWHM | Wider — brighter | Narrower — better surface contrast |
| Filaments | Difficult to observe | Visible and detailed |
| Protuberances | Very shiny blade | Visible but less brilliant |
| Contrast | Less contrast, brightness priority | High contrast, ideal for chromospheric detail |
| Recommended use | Quick visual observation | Detailed observation and astrophotography |
