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DayStar Filters Quantum Product Line
Our precision Quantum housing incorporates ALL of the desired features for today's solar astronomer... and then some. Operation couldn't be simpler, just plug it in and a green light indicates when the filter is onband.

The housing offers live LCD readout of the filter's wavelength output (accurate to 0.1Å) and red /blue wing shift buttons that can precisely tune wavelength up or down for Doppler studies. The unit operates at 12VDC for field or battery use, included is a 100-240 power supply with US, European, UK and Australian adapter wall plates and even includes a serial port for computer control capability for on-screen display of filter readout. The new Quantum Series body style is all about ease of operation.... total simplicity.

Available for H-alpha, Na D, Ca II K-Line, Helium and Custom wavelength Filters.


All new heated DayStar Filters produced will feature this new housing style. Owners may upgrade their existing ATM or University model DayStar filters to the Quantum series housing.

The Quantum SE grade series are designed for most amateur and some academic applications. These filters meet the critical DayStar quality control criteria applicable in all visual and some photographic environments.

Our Quantum PE grade series is designed for professional research studies and applications in which precision homogeneity and onband transmitance values across the substrate surface are required. These filters require additional quality control steps and additional fabrication and testing time.  (READ MORE ABOUT OUR PE GRADE CERTIFICATION)

(Standard Edition)
Half-bandwidth FWHM
(Maximum @ f/30)
Views to Expect
0.7 Angstrom ImageFilters with 0.8 ångström bandwidths will reveal prominences in high contrast.
wpeA2.jpg (38961 bytes)Filters with 0.7 ångström bandwidths will reveal prominences in high contrast and occasionally, surface texture. Prominences are generally larger with .7Å filters than in narrower bandwidths.
0.6 Angstrom imageFilters with 0.6 ångström bandwidths will reveal some surface contrast as well as prominences.  A .6Å filter can be a good compromise for those having a difficult decision.
0.5 Angstrom ImageFilters with 0.5 ångström bandwidths will reveal better surface contrast as well as great prominences.
0.4 Angstrom imageFilters with 0.4 ångström bandwidths will reveal excellent surface contrast as well as fine chromosphere detail.
0.4 Angstrom imageFilters with 0.3Å ångström bandwidths will reveal superior surface contrast above any other filter. Views are generally somewhat dimmer.  Expect "Pencil-Thin" details on surface and prominence features.

* HALF-BANDWIDTH: The term half-bandwidth refers to an optics industry standard of measure.  On a chart depicting the peak where light is transmitted, that peak's width is measured at the point 50% between zero and full transmission. This term is called half-bandwidth.

The Sun Today
Hydrogen Alpha Filters
Current Delivery Times:

4-6 weeks for:
Blocker and Trimmers
ION Filters
CaII H line filters
Quantum upgrade:  
Quantum SE Filters
SolaREDi 60 Scopes
SolaREDi 80 Scopes

3-6 months for:
Quantum PE Filters
Ca II K Line PE Filters
Sodium Line FIlters
Solar System Filter Wheel

All DayStar Hydrogen a filter assemblies need to be used in conjunction with a lens cover and Energy Rejection Filter.

Offering absolute precision control over wavelength transmission. . .

DayStar Filters LLC • 149 Northwest OO Highway • Warrensburg, MO 64093 - USA
Telephone: 866-680--6563 • service@daystarfilters.com • FAX: 1-866-791-0448