Description

Daystar Quark Gemini brings the best contains both Prominence and Chromosphere bandpass filters for instant slide-action switching between either view.

Now, observers can enjoy the best of both options in one easy to use tool with no equipment swapping or refocusing of any kind.

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.

For use on refractors of F/4 to F/8**, the user needn't worry about configurations. Just insert in your diagonal, add an eyepiece and view.

Specs

• 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 SCT 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.