Building on the success of the standard versions of their Quark, DayStar Quark H-Alpha Solar Filter for Nikon Fdesigned this version of the DayStar Quark H-Alpha Solar Filter for Nikon Fto fit Nikon F camera bodies and lenses to allow imaging or viewing prominences. To fit your camera system, the each end is equipped with a corresponding bayonet mount for easy attachment, and full disk viewing possible on lenses up to ~450mm focal length. A rear 1.25" eyepiece adapter is included to allow the use of traditional astronomical eyepieces. This adapter essentially converts your lens into a solar telescope. Daystar recommends the use of red, orange or yellow colored glass lens front filters for apertures over 80mm.

The filter is tuned to the 0.8-0.6Å bandwidth of the 656nm hydrogen-alpha wavelength with the ability to tune it ±0.5Å from the center line for compensate for Doppler shift or to focus on specific regions or features, with indicators every 0.1Å. Prominences, a detail of the chromosphere projected against the blackness of space behind the sun, are seen with improved contrast due to the filter's narrower bandpass versus a wider bandpass filter tuned for conventional chromosphere surface viewing. The filter is powered via a micro-USB port, and Daystar includes a power cord and an AC adapter to meet the high-power requirements of 5 VDC 1.5A. To enable its use at home and abroad, a set of international outlet plugs is provided with adapters for the US, UK, EU, and Australia.

The Camera Quark comes with a combination lens foot with 1/4-20 tripod holes to mount it on conventional photo/video/field tripods, and a Vixen-style dovetail plate for telescope mounts. While a focal extender spacer ring is included to ensure compatibility with a wide variety of lenses, focus and clearances are not guaranteed with all Nikon F lenses. Because there is no electric pass-through on the filter, when installed between the camera body and lens, some lens features such as auto-focus and electronic aperture control will not work.

656nm H-Alpha Filter with 12mm Blocking    Tuned for Prominence Viewing    Use Nikon F Lenses for Solar Imaging    ±0.5Å Wing Shift Tuning    2-Element Telecentric 4.2x Barlow Lens    Optical Coatings Tuned to H-Alpha Band    No OTA Aperture Limitations    5 VDC, 1.5A Micro-USB Port    1/4"-20 Tripod and Vixen Dovetail Plate    Does Not Support All Lens Functions

• Hydrogen-alpha bandpass
• Integrated 12mm blocking filter
• 20mm clear etalon aperture
• Tuned to 0.8-0.6Å for viewing prominences
• Tuning knob allows for ±0.5Å wing shift for Doppler-shift compensation
• Markers at every 0.1Å for reference and repeatability
• LED indicators for power, warming, ready, and fault

• Integrated 4.2x Barlow lens
• Lens and optical coatings designed specifically for 656nm H-alpha wavelength
• Two-element telecentric lens design keeps light waves parallel to flatten the field of view and reduce parallax as magnification increases

• Front and rear bayonet mounts for Nikon F cameras and lenses
• Full disk viewing possible on lenses up to ~450mm focal length lenses
• Includes focal extender spacer ring to ensure compatibility with a wide variety of lenses
• No electric pass through on filter so lens features like auto-focus and electronic aperture control will not work
• Focus and clearances not guaranteed for 100% of lenses
• Use of red, orange or yellow colored glass lens front filters recommended
• 1.25" eyepiece adapter to use conventional astronomical eyepieces and convert lens into solar telescope

• 5 VDC, 1.5A micro-USB port
• 90-240 VAC wall adapter
• Set of international outlet plugs for US, UK, EU, and Australia

• Reversible combination lens foot
• 1/4"-20 tripod holes for use with standard photo, video, or field tripods
• Vixen-style dovetail plate for use with telescope mounts

Related Questions and Answers

Q: 1. 70 mm size, would it work on my 2 lenses with filter sizes are 77 and 62 mm or should I also buy the smaller size?

A: For use on a 77 mm filter size , we recommend the DayStar Filters 90mm White-Light Universal Lens Solar Filter (Single, 85-99mm OD) B&H # DAULF90 90mm = 3.54331 inches. 77 mm = 3.0315 70 mm = 2.75591 inches. 62 mm = 2.44094 inches.

Q: 2. I Have An F7 102mm Triplet Refractor From Explore Scientific, If I Purchase This HA Solar Filter What Else Would I Need To Purchase

A: The DayStar Filters QUARK H-Alpha Eyepiece Solar Filter inserts into 1.25" or 2" diagonals and accepts 1.25" eyepieces. I recommend using UV/IR cut filters. Follow this link https://bit.ly/3UpqtKg if you are using a diagonal, or https://bit.ly/494r2gU if you are not. The following energy rejection filter is also recommended for optical tube assemblies over 80mm. https://bit.ly/3vYBecc

Q: 3. DayStar Filters Camera Quark H-alpha Solar Filter for Canon (Prominence): Does this provide product adequate filtration of the sun for the upcoming eclipse, or does it need to be used in consort with additional filters on camera/scope for viewing?

A: The DayStar Filters Camera Quark H-alpha Solar Filter for Canon (Prominence) goes between your lens and camera. You still need a ERF (energy reflecting filter) on the front of your lens. This will prevent damage to the lens. For help choosing a ERF (energy reflecting filter) for your lens email us at sportoptics@bandh.com.

Q: 4. Looking at the video, there does not appear to be any filter in front on the front element on the telephoto lense. Wouldn't you have to have a solar filter in front to keep from damaging the internal components of the telephoto lens? Should you use a Mylar solar sheet like I normally use for telephoto sun pictures.

A: You are right,it is called ERF(energy reflecting filter). I have ordered one with my Ha filter Aug 3 but has not arrived. So haven't been able to used the Ha filter.

Q: 5. Can I use this with newtonian telescope using off axis reduction?

A: For the DayStar Filters QUARK H-Alpha Eyepiece Solar Filter (Chromosphere) BH #DADSZ4C • MFR #DSZ4C simply inserts into 1.25" or 2" diagonals and accepts 1.25" eyepieces.

Q: 6. Can I use this to take photos of the sun for practice of the upcoming solar eclipse?

A: Yes. The DayStar Filters 70mm White-Light Universal Lens Solar Filter can be used for solar photography with or without an eclipse.

Q: 7. Will this work on an Orion Astroview 120ST (600mm, f/5)? If so, will I need any additional adapters or extension tubes (for focusing)? Thank you.

A: The DayStar Filters QUARK H-Alpha Eyepiece Solar Filter (Prominence) BH #DADSZ4P • MFR #DSZ4P simply inserts into 1.25" or 2" diagonals and accepts 1.25" eyepieces. This design enables the use of nighttime telescopes for solar viewing. In addition to the tunable H-alpha filter, the Quark also functions as a 4.3x Barlow lens, with a 2-element lens system designed to be telecentric which flattens the field of view and reduces parallax, and optical coatings that are optimized for the 656nm H-alpha wavelength.

Q: 8. Is this compatible with Nikon z or Nikon F ?

A: The DayStar Filters Camera Quark H-Alpha Solar Filter for Nikon (Prominence) will work with Nikon F mount lenses,

Q: 9. would this filter fit on a Sony SEL1670Z 16-70mm f/4?

A: I agree with Nathan, the 65-89mm filter would be too big unless you wrapped something around the lens first. The Day Star 50mm sounds perfect for your lens. The B&H site is now showing the larger filter as discontinued at this time anyway.

Q: 10. what is the ND equivalent of this filter?

A: The DayStar Filters 70mm White-Light Universal Lens Solar Filter (Single, 65-89mm OD) is a solar filter and not an ND. So there is no density rating for it.