Why does the Daystar Quark use Calcium H-line instead of K-line?
Daystar chose the Calcium H-line (3968.5Å) because it is more easily visible to a wider range of observers, particularly those with more life-long observing experience. The shorter wavelength of the K-line can be difficult or impossible for some people to see. The H-line provides virtually identical high-contrast views of chromospheric features like plage and supergranulation, ensuring more people can enjoy the view.
Will my fast f/5 refractor work with the Daystar Calcium Quark?
Not directly. The Calcium Quark is optimized for telescopes with a focal ratio of F/7 to F/30. To use it with a faster telescope like an f/5 refractor, you must use a Barlow-type lens to slow the light cone. Daystar recommends a 2x or 2.5x Tele Vue Powermate placed before the Quark to achieve the best performance.
How do I power the Daystar Calcium Quark in the field?
The Calcium Quark runs on standard USB power (5V, 1.5A). While it includes a 90-240VAC wall adapter for home use, its low power draw makes it ideal for field use with a portable USB battery pack. An optional 8-hour battery pack is available, but any standard power bank that meets the 5V, 1.5A requirement will work.
Do I need any other filters with the Calcium Quark?
Yes. For safety, Daystar strongly recommends using a front-mounted UV/IR cut filter on your telescope's objective. This prevents excess heat from entering your telescope and the Quark. It is critical to note that the Calcium Quark is NOT compatible with red or yellow glass Energy Rejection Filters (ERFs).
What solar features can I see with the Calcium Quark on a 100mm f/9 refractor?
A 100mm f/9 refractor is an excellent match for the Calcium Quark. You can expect to see detailed views of the Sun's upper chromosphere, which appears very different from Hydrogen-alpha. Key features visible in Calcium H-line include:
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Plage: Bright, active regions that often surround sunspot groups.
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Supergranulation: A network of large-scale convection cells that cover the entire solar disk.
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Sunspots: The umbra and penumbra of sunspots are visible, often with surrounding bright plage.
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Flares: Very bright, eruptive events can sometimes be witnessed in this wavelength.
Does the Calcium Quark include a built-in Barlow lens?
No, the Daystar Calcium Quark does not contain any Barlow or focusing elements. It is a dedicated filtering device. You will use your own eyepieces for magnification and your telescope's focuser to achieve a sharp image.
