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DayStar Filters SODIUM QUARK Manual

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DAYSTAR FILTERS
Congratulations on your purchase of a Quark Sodium D "Eyepiece" solar
filter. Please read this manual before using the product.
To use the filter, plug in the included power supply, then place the
Quark after your telescope's diagonal and insert an eyepiece or
camera in the rear of the filter. Turn the knob to point straight away
from the LED light.
minutes your viewing experience can begin.
To prevent damage, we recommend using an Energy Rejection Filter on
telescopes of 80mm aperture or more, or when tracking the Sun for long
periods. This can be a UV/IR cut filter mounted before the diagonal, or a
full aperture red or yellow glass ERF mounted in front of the telescope.
Warnings:
Do not disassemble the filter, the blocking element is separated from the
etalon and the complete assembly must be used together for safe
viewing.
Do not power the filter from a computer or cell phone charger as the
Quark requires a high current power supply (> 1.5A) for operation.
For assistance:
Call:
1 (866) 680-6563
Email: service@daystarfilters.com
Visit:
http://www.daystarfilters.com
SODIUM QUARK
When the light turns green in about 5-10

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  • Page 1 DAYSTAR FILTERS SODIUM QUARK Congratulations on your purchase of a Quark Sodium D “Eyepiece” solar filter. Please read this manual before using the product. To use the filter, plug in the included power supply, then place the Quark after your telescope’s diagonal and insert an eyepiece or camera in the rear of the filter.

  • Page 2: Cautions And Warnings

    A few very important points that owners and operators must understand: • DayStar filters are rear-mounted and can be applied to a choice of telescopes if applied properly. If application is incorrect, the filter will not perform as specified. •...
  • Page 3 USAGE: The Quark is designed for use on F/4 to F/9 refractors. Combined with an integrated 4.3x telecentric barlow, this results in a F/17 to F/38 final image respectively, to provide the best performance from your filter. Because of the included barlow, images will appear 4x larger than without the Quark, and ample additional backfocus is available.
  • Page 4 Energy Rejection: Concentrated sunlight can create very high temperatures where it falls, so care must be taken to prevent melted components or fire. For brief observing sessions with less than 80mm of aperture when not using a tracking mount, it can be OK to use no energy rejection at all. Be alert for any rise in temperature of your telescope, diagonal, or Quark.

  • Page 5: How It Works

    'film' will not affect visual performance. Fingerprints, smudges and smears must be cleaned off. Preferred cleaning method is to return the Quark to the DayStar Filters laboratory for proper factory cleaning. Do not unscrew, open or separate your Quark filter assembly. The optical elements are held under pressure by design and will become damaged if opened.
  • Page 6 Eyepiece Selection: Daystar Recommends Tele Vue Plossl series eyepieces of 25mm, 32mm, and 40mm. Remember that at F/30, a high powered eyepiece can exceed Dawes' limit. Observers will find best results with an eyepiece which is 32mm or greater to avoid this. Eyepieces of higher power will result in a fuzzy disk without the ability to focus well.
  • Page 7 - A jet-stream moving overhead can also hurt seeing conditions even on a clear day. DayStar Filters are high power viewing platforms and this high resolution can be susceptible to seeing issues. Solar Observers using high powered, high resolution telescopes and DayStar filters should heed daytime seeing.
  • Page 8 Solar Imaging Tips: Daystar recommends MONOCHROME imaging whenever possible for best results. The recent availability of CCD cameras and DSLR cameras has offered a simple opportunity solar observers to image Hydrogen Alpha with a Digital SLR camera. Please be advised, however, that due to the nature of monochromatic light and its effects on a CCD camera, certain negative effects are likely to occur.
  • Page 9 Lucky Imaging: Virtually all solar imaging can benefit from the technique of Lucky Imaging, where a high speed camera is used to capture hundreds or thousands of frames in a short time span. Then special software can be used to select and stack just the frames least affected by atmospheric seeing.
  • Page 10 Special consideration for Sodium D: Granulation Motion Blur Motion blur should be considered with large apertures (over 100mm) that enable resolution of granulation. These features change form and position noticeably on the timescale of 1-2 minutes. If you are using Lucky Imaging to capture image sequences to stack for best seeing, keep captures less than 60-90 seconds in duration to prevent granulation motion blur.
  • Page 11 Sodium D versus Hydrogen: Whereas Hydrogen Alpha filters show the chromospheric level of the Sun’s atmosphere, Sodium D filters show the photospheric level. While the view in Sodium is superficially similar to that provided by white light filters, there are a number of advantages to observing in Sodium. Certain phenomena such as flare footprints are not visible in white light.
  • Page 12 Umbra are the dark cores of Sunspots, where the magnetic field lines are generally vertical to the Sun’s surface and most intense. Penumbra are areas that surround the dark cores of Sunspots. They consist of penumbral filaments that stream away from an umbra. Penumbral filaments require at least 120mm of aperture and excellent seeing to resolve.

  • Page 13: Troubleshooting

    Troubleshooting: Blank, featureless disk: Thin clouds or haze may be present, try again later. Check solar activity, no sunspots may be present. Try moving focus in and out by 1-2 inches (2-5cm). Ensure Quark is installed AFTER diagonal. Make sure a 25 to 40mm eyepiece (not included) is installed. Ensure knob is pointing straight away from the power jack.

  • Page 14: Specifications

    Specifications: Wavelength: 5895.9Å Tuning knob: Wing shift +/- 0.5Å in 0.1Å increments. FWHM: Not specified. Generally 0.5Å or below. Compatibility: F/4 to F/9 refractor telescopes. Not suited for off-axis (SCT or dob) application. Barlow: Integrated, fully baffled 2 element telecentric 4.3X barlow optimized for 590nm Blocking filter: Integrated 12mm blocking filter Clear aperture: 20mm clear etalon aperture...

  • Page 15: Fcc Notice

    Household users should contact either the retailer where they for Household users should contact either the retailer where they for disposal. Copyright: This manual copyright © DayStar Filters 2016, all rights reserved. , all rights reserved.

  • Page 16: Warranty

    Manual (B) modified, altered, or used as part of any conversion kits, subassemblies, or any configurations not sold by DayStar, or (C) serviced or repaired by someone other than the DayStar Filters Service Center for a defect or malfunction covered by this warranty. This warrantee includes shipping to and from any point inside the United States.

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