The DayStar Quark is a cutting-edge hydrogen-alpha (H-alpha) solar filter that converts standard refractor telescopes into high-performance tools for solar observation. Unlike conventional front-mounted solar filters, the Quark attaches to the eyepiece end, enabling seamless integration with various refractor sizes without requiring additional adapters. This innovative design offers both versatility and ease of use, making detailed solar imaging and observation more accessible.
You can scroll down to the end of this article to view a video review of Quark Chromosphere by Ed Ting, an accomplished amateur astronomer and astronomy products reviewer.
Available in two models – Chromosphere (reviewed in the video below) and Prominence – the Quark allows users to focus on specific solar features. The Chromosphere model is optimized for detailed surface observations, revealing intricate structures such as filaments and sunspots, while the Prominence model excels in highlighting solar prominences at the sun’s edge.
The Quark incorporates a custom-designed 4.2x telecentric Barlow lens, fully optimized in coatings and optical design specifically for the H-alpha wavelength. This design ensures superior field flatness and eliminates the need for additional adapters, resulting in a compact and lightweight device.
For refractors with apertures up to 80mm, no additional energy rejection filters (ERFs) are required. For those between 80mm and 150mm, a UV/IR blocking filter placed in front of the diagonal is sufficient. For apertures exceeding 150mm, a front-mounted ERF is recommended to prevent heat buildup and protect the telescope’s optics.
The Quark operates on USB power and includes a 90-240VAC wall adapter with international plug adapters. Its tuning knob allows for wing shifting of ±0.5Å with detents at every 0.1Å, providing precise control over the observed features. An LED indicator displays the device’s status, including power, warming, ready, and fault conditions.
You can learn more about the DayStar Quark here.
And if you want to learn more about safely viewing and imagng the Sun, The Definitive Equipment Guide to Viewing and Imaging the Sun ca be found here. It provides an easy-to-consume introduction to the technological options for enhancing your solar imaging and observing experience. We cover the gamut of options available including building your own solar viewer, solar glasses, smart phones, DSLR cameras, astronomy telescopes, solar telescopes, binoculars, solar filters (including a DYI filter option), CCD astro cameras, astro video cameras, and much more.
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