Current Delivery Times: 12 weeks for: Blocker and Trimmers T-Scanners CaII H line filters Quantum upgrade:   Quantum SE Filters 6 months for: Quantum PE Filters Ca II K Line PE Filters Sodium Line FIlters Helium D3 Filters
Product Choice
•	SolaREDi 60mm Imaging Telescope
•	T-Scanner Filters
•	Quantum Filters
•	Calcium Filters
•	Sodium D Filters
•	Energy Rejection Filters
•	Adapters & Snouts
Solar Introduction
Application
Resolution and Aperture Choices
Photo Gallery
Service / Repair
Upgrade or Trade-in
Filter Specifications
DayStar Dealers
Request Quotation
Recent Trade Shows
Terms of Sale
SolaREDi Test Images
Troubleshooting
About Opening a DayStar Filter
Downloads: Quantum Software SolaREDi Manual T-Scanner Manual Quantum Manual
The Sun Today

DayStar Filters is supplying research filters for the NSO. "The National Solar Observatory is operated by the Association of Universities for Research in Astronomy, under a cooperative agreement with the National Science Foundation." [ click here to read more about the GONG project ]

DayStar Filters are the academic standard in narrow bandpass astronomical solar filters.  For decades, professional observatories and universities worldwide have counted on the superior quality and performance of DayStar filters.  They can be found in the world's major educational institutions and research facilities, both terrestrial and flown.

The superior DayStar solid spaced etalon design is adaptable to a wide variety of astronomical telescope systems offers high enough uniformity to be introduced at the rear of the telescope. The T-scanner and Quantum series may be used on almost any telescope in the correct configuration.

DayStar's unique solid spaced technology achieves narrower bandpass in one etalon and superior uniformity for more a more detailed image.  Combined, these design differences accomplish the highest quality view in contrast and resolution possible, limited only by seeing or diffraction.