Daystar Quantum H-Alpha Bandpass Filter 0.4Å Research Grade

Daystar Quantum H-alpha Bandpass Filter 0.4å Research Grade

Product Code: eq33909
Availability: In Stock

$83,970.00 $130,153.50

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Description
Reviews (14)

Mainly used to study the photosheric, chromospheric, prominence and atmospheric areas of the sun, DayStar Quantum H-Alpha Bandpass Filter 0.4Å Research Gradeis built to specifically improve solar surface contrast and fine chromosphere details. The filter is installed at the rear of the OTA, rather than before the primary objective so it can be used on telescopes of virtually any aperture and easily move between a variety of scopes. This version of the Quantum is designed for professional research-grade users who require tight tolerances and improved quality. To accomplish this, Daystar improved homogeneity and onband transmitance values across the substrate surface, so these filters require additional quality control steps, as well as additional fabrication and testing times.

The filter comes calibrated for the H-alpha wavelength at 6562.8Å and using the electronic tuning system, which is accurate to 0.1Å, the wavelength can be offset as much as 1.0Å in either direction for Doppler shift compensation and to highlight specific areas. The Quantum is outfitted with an RS-232 serial port that allows it to be connected to a computer and enables remote viewing of the wavelength display and control of the tuning. It runs on 12 VDC power and comes with a 6' power cord and a set of international outlet plugs for the US, EU, UK, and Australia.

Hydrogen-Alpha Solar Filter Engineered for Professional Research Use Enhances Surface Contrast Electronic Doppler Tuning Control 1.0 Å Offset Capability Wavelength Output Accurate to 0.1Å RS-232 Serial Port for Computer Control Runs on 12 VDC Power

Parameters
Application	Solar viewing
Type	Hydrogen-Alpha
Bandpass	0.4 Å
Wavelength	6562.8 Å ± 1.0 Å offset capability for Doppler shift observation
Multi-Coated	Yes
Power Requirement	12 VDC
Environmental Limits	32 - 104°F / 0 to 40°C Humidity: 20 - 80%, non-condensing
Dimensions	Diameter: 3.0" / 7.6 cm Length: 1.7" / 4.3 cm Length with filter mounting plates: 2.2" / 5.6 cm
Weight	16.0 oz / 453.6 g

Related Questions and Answers

Q: 1. 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: 2. I have a Apertura 75Q petzval design with internal lenses and flattener technology. will this Daystar DSZ4C be compatible?

A: The DayStar Filters QUARK H-Alpha Eyepiece Solar Filter (Chromosphere)will fit in any telescope that accepts 1.25 inch eyepiece. It works best with refractor telescopes that are between f4 and f8.

Q: 3. 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: 4. 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: 5. 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: 6. what is the filter factor, i.e., by how many stops does white light get diminished?

A: Depending on the subject, the Alpine Astronomical H-Alpha 20nm Bandpass Filter could reduce light by a factor of fifty or more.

Q: 7. What is the difference between a tuned for prominences and a chromosphere filter? Is there one of them that does both better? How do I choose?

A: No, two different condition. The chromosphere is the sun's surface. The prominence is viewing sun flairs around the perimeter of the sun. .

Q: 8. What is the extended working height ? Thanks

A: The max height of the Field Optics Research PRO39-MIL FBT6266C Professional Military Grade Carbon Fiber Tripod is 61.5".

Q: 9. will this work with an ED80T CF Triplet telescope?

A: Just got mine last week and got great views on my old SV AT1010 80mm f6 achro. Just saw black at first then, per the instructions, turned the tuning dial 2 clicks clockwise. In a few minutes i was seeing great chromo and proms as well. I got the front mount uv/ir blocker as i will be using it on a larger scope as well. You won't get a full disc view though because the focal length is greater than 450

Q: 10. If I got this for film photography, how many stops of light would I have to compensate for a film like hp5 or fp4?

A: The Kolari Vision UV Bandpass Lens Filter does not specify a filter factor since the factor varies based on the amount of UV light.

Dennis	19/09/2024
[0.4 Å] Great filter helped make the Blacks pop. 5

Jonathan	05/09/2024
[Hydrogen-Alpha] Happy with everything I've got from Polar Pro. Quality glass that holds up and performs well over the years. These soften that harsh digital camera image nicely. 5

Andres	29/08/2024
[Solar viewing] This is not a filter to have just for fun. First of all it requires you to have a Full spectrum conversion on your camera. Second of all it is for a very specific use and its price is no joke, so if you don't need it I would spend my money on something else I would use more. But in my case it's been a blast. I will use a lot more my converted camera now that I have it, and just getting started with experimenting out of the users manual I have a lot of ideas to work on with this filter. The filter only lets through UV light so exposure compensation is required and even under bright sun you will more than likely shoot on a tripod, with high ISO using slow shutter speeds. This filter is a tool, not a toy. 5

Michael	26/08/2024
[0.4 Å] There is no better narrowband green filter for astronomical observations and photography. I have been observing since 1974 and this filter has turned my achromatic refractor into an apochromat. Viewing on the Moon cannot be sharper eliminating chromatic aberration by using one wavelength of color and then converting to black and white monochrome. Baader's reputation exceeds itself. 5

anyonymous	07/08/2024
[Solar viewing] I purchased this with the intent to use it in the head of an Aristo 8x10 enlarger. Prior to using this the enlarger was absurdly overpowered. However this filter has taken it down enough of a notch to make it manageable. I purchased this with a #4 and will purchase the #3 when it becomes available so I have a full set. 5

Andres	02/08/2024
[0.4 Å] Its almost magic. Se what your eyes can't see. Thats what this filter does in a full conversion camera, a tripod and a photographer capable of working with tools that are not for everyone. But if you pay what it costs and wait for it to be back ordered you are more than likely a committed photographer already. The filter can be used in a lot of scientific uses but I got it once I converted a full frame DSLR with still a lot of life ahead to full spectrum and got a very large set of filters to get the most of it shooting infrared and UV photography. So far it's been a great way to open new possibilities on creative photographic exploration. 5

py1hy	26/06/2024
[12 VDC] You can buy the 12 x 12/30 cm x 30 cm printing filters and cut them for any size 3x3, 6x6 or any size for contact printing. Jacques 5

Wayne	22/06/2024
[Yes] B&H had the DayStar Quark Ha solar filter in stock and in my hands within 3 days, excellent selection and service! I have a 50mm Lunt solar telescope which provides excellent views and images of the entire solar disk. I purchased the DayStar Quark Ha etalon as a complement to provide close up views with higher resolution of the solar surface features. Currently, I have the Quark configured with an 81mm William Optics doublet, the views and images have not disappointed. For imaging I am using the ZWO ASI178MM camera and binning the pixels 2x2 or 3x3. Future plans are to configure the DayStar Quark etalon with a higher focal length, slower telescope combined with a faster and larger pixel camera to improve the resolution. The DayStar Quark etalon is a very versatile piece of technology to view our star, I'm extremely pleased with the purchase. Caveat: Be sure to do your research re. Hydrogen Alpha solar observation and imaging prior to purchase. It's necessary to understand the hardware, challenges and especially the hazards inherent with solar observation to avoid disappointment, frustration and most importantly, injury to yourself. 5

David	13/06/2024
[12 VDC] Have had a great time using this filter for observing the Sun. More so, now that I have a mount that will track the Sun automatically (Celeston AVX). I am using this filter with a Televue Pronto, and while DayStar recommends using a Televue 32mm Plossl eyepiece for best results, I was not happy with the results when using this eyepiece. The image kept blacking out and it was too difficult to find the sweet spot to keep the image visible. I wound up using a Vixen SLV 25mm eyepiece, which worked much better in my scope with this filter. The Chromosphere model yields nice views of prominences too. 5

Kris	15/05/2024
[Yes] The Glimmerglass 1/2 is nice. The sharp edges are reduced but I still have detail. And being able to quickly pop off the filter for certain shots is awesome! 5