Daystar QUARK H-Alpha Eyepiece - Prominence Model

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Daystar QUARK H-Alpha Eyepiece - Prominence Model
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  • Revolutionary design in solar observing, the DayStar QUARK is an h-alpha eyepiece!
  • The prominence model has been configured to highlight solar prominences, specifically.
  • An incredible all in one design: simply drop the QUARK into your diagonal, add an eyepiece and you're ready to start observing! Works best with eyepieces with focal lengths between 25mm & 40mm.
  • Compatible with refractors between f/4 and f/8.
  • The Daystar QUARK is a 4.2x Barlow type lens married with a 21mm h-alpha filter, with an integrated 12mm blocking filter.
  • Included baffling increases contrast. AR coatings are optimized for the 656nm wavelength.
  • Electronic cooling and heating offer image stability with fine-adjustment tuning for optimum views. Exceptionally low power drain.
  • Image may depict diagonals, telescopes, and focusers which are not included with the QUARK


A Revolution in Affordable H-Alpha Observing

The QUARK from DayStar filters marries a high-tech telecentric 4.2x Barlow lens with an exceptionally high quality DayStar h-alpha filter.  Combining the Barlow, filter, adapters and snouts into one highly compact and innovative design.  This all-in-one design is simply dropped into a diagonal, add an eyepiece and you're ready to observe!    Compatible with refractors with focal ratios between f/4 and f/8 and best used with eyepieces with focal lengths between 25mm and 40mm, the QUARK will allow most refractor owners to view the sun without any additional equipment purchases.  

Because the exact filter bandpass will vary depending on the refractor it is paired with, the QUARK has been configured into two models.   By offering the QUARK at a very reasonable price, Daystar has made your solar observing goals obtainable! By choosing the prominence model, the QUARK will highlight solar prominences specifically. If it's surface detail you're after, the Chromosphere model is the one for you.  Want it all? Get both!

QUARK Features

  • Integrated, fully baffled 2 element telecentric 4.2X barlow optimized for 656nm
  • Integrated 12mm blocking filter
  • 21mm clear filter aperture
  • Best performance with f/4 - f/8 refractors
  • Standard 1.25 eyepiece drawtube output with optional 2" and SCT accessories available.
  • Brass compression ring to protect eyepiece.
  • Uses USB power, 5v 1.5amp
  • Includes 90-240VAC wall adapter with international plug adapters.
  • Tuning knob allows wing shifting +/- 0.5Å with detents at every 0.1Å
  • LED indicator for power, warming, ready, fault.
  • Optional 8-hour battery pack available.
  • 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 convenient Twist-Case for safe, dust-free storage.
  • Not suited for off-axis application
  • 5 year warranty.
Additional Information

Additional Information

Aperture 21mm
Emission Line H-Alpha
Bandwidth Variable
Blocking Filter Included B1200
Blocking Filter Barrel Size 2"
Manufacturer DayStar
Warranty 5 Year Warranty
Wavelength Variable
Tuner Included? Yes
Included Items

Included Items

  • Daystar QUARK Prominence Model H-alpha Eyepiece
  • 90-240VAC Power Adapter with International Plug Adapters
  • Protective Twist Case
Questions & Answers

Product Questions

Would this enhance my solar experience with my Lunt LS60 Tha? Will it work even though my scope can see prominences, flares etc?
By putting the H-Alpha filter on the backend behind the main optics and behind a diagonal, don't you risk damage to the optics or the diagonal?
I'm still skeptical. I'm assuming that folks use this with no filter at the start with no issue but I just can't get my head around it. Your dashboard gets hot in the sun and the windshield isn't always focusing the rays.
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