Cloud Break Optics

Quark Gemini

Quark Gemini - Main image
$1621.75 $2495 In stock

Category: Solar Filters

All sales of solar gear are final, so please choose your filter carefully and reach out with any questions.

Description

Enjoy BOTH narrow Chrom and wide Prom Quarks in ONE! Daystar built both of them in the same housing. No equipment swapping, no refocusing.

Push the slider arm side to side like in an eye exam to see the broad stroked prominences of wider bandpass, then the high contrast of narrow bandpass.

Specifications

  • Contains TWO separate Fabry Perot Etalon elements, which may be shifted safely via push-pull into view.  
  • A hand-matched pair of narrower (<0.5Å FWHM) and wider (>0.6Å FWHM) etalons shall be SE grade and independently tuneable.
  • Ships with male combo 1.25" or 2.0" combo eyepiece snouts with safety indent slot directly into your diagonal
  • Ships with standard 1.25 female eyepiece drawtube output. Optional interchangeable 2" and camera accessories available.
  • Brass compression ring to protect eyepiece.
  • Uses USB power, 5v 2.0amp
  • Includes 90-240VAC wall adapter with international plug adapters.
  • Two tuning knobs allow wing shifting +/- 0.5Ã with detents at every 0.1Ã
  • LED indicator for power, warming, ready, fault
  • 5 year warranty,
  • Optional 8-hour battery pack available.
  • Integrated, fully baffled 2 element telecentric 4.2X barlow optimized for 656nm
  • Integrated 12mm blocking filter
  • 22mm clear filter aperture
  • Best performance with F/4 - F/8 refractors
  • Full disk viewing possible on refractors up to ~450mm focal length refractors
  • No aperture limitations. May be used on larger refractors for higher magnification views
  • Ships in watertight pelican style equipment case for dust & humidity-free storage.
  • Not suited for off-axis application.
Before you pay

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 5 reviews)

Miles H. ★★★★★

Finally got to test both filters back-to-back during a clear morning, and being able to see the Chromosphere then flip to a Prominence view without swapping gear is incredible. The build feels solid, even after a few hours in direct sun.

Andrew ★★★★★

Swapping between the Chrom and Prom views is incredibly smooth, and the dual functionality means I don’t have to choose between narrowband and wideband observations. The build quality feels solid, and it’s been performing flawlessly even on hazy afternoons.

Brian ★★★★★

The dual-mode design is a game changer—I can observe both the Chromosphere and Prominences without swapping filters. The image clarity through the narrow Chrom Quark is stunning for the price. It took a bit to dial in focus, but now I'm hooked.