DayStar Filters
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FC90 FlatCap Imaging Diffuser
$85.00FC90 Flat Cap Imaging Diffuser fits 80-89mm tube OD or 63mm ERF Learn More -
Quantum Hydrogen Alpha 0.3-0.5Å SE
$8,995.000.3-0.5Å SE Quantum Solar Filter, Hydrogen Alpha line. For use with refractors, SCTs, Maksutovs. Includes front and rear plates, power supply, instructions, and hard case. Requires ERF or UV/IR cut filter, plus Powermate barlow or stop down mask to reach F/27-F/35 focal ratio for best performance (sold separately). Learn More -
DayStar Blocker & Trimmer Restoration Quantum PE/University
$1,995.00Out of stock
Restoration of blocker & trimmer filters on Quantum PE / University models of DayStar Solar Filters that are out of warranty. Learn More -
FC210 FlatCap Imaging Diffuser
$99.00FC210 Flat Cap Imaging Diffuser fits 190-209mm tube OD. Learn More -
FC190 FlatCap Imaging Diffuser
$99.00FC190 Flat Cap Imaging Diffuser fits 180-189mm tube OD. Learn More -
FC180 FlatCap Imaging Diffuser
$99.00FC180 Flat Cap Imaging Diffuser fits 170-179mm tube OD or 150mm ERF. Learn More -
FC170 FlatCap Imaging Diffuser
$99.00FC170 Flat Cap Imaging Diffuser fits 160-169mm tube OD. Learn More -
FC160 FlatCap Imaging Diffuser
$99.00In Stock!
FC160 Flat Cap Imaging Diffuser fits 150-159mm tube OD or 130mm ERF. Learn More -
FC150 FlatCap Imaging Diffuser
$85.00FC150 Flat Cap Imaging Diffuser fits 140-149mm tube OD Learn More -
FC140 FlatCap Imaging Diffuser
$85.00FC140 Flat Cap Imaging Diffuser fits 130-139mm tube OD Learn More -
FC130 FlatCap Imaging Diffuser
$85.00FC130 Flat Cap Imaging Diffuser fits 120-129mm tube OD or 100mm ERF Learn More -
FC120 FlatCap Imaging Diffuser
$85.00FC120 Flat Cap Imaging Diffuser fits 110-119mm tube OD or 90mm ERF Learn More -
FC110 FlatCap Imaging Diffuser
$85.00FC110 Flat Cap Imaging Diffuser fits 100-109mm tube OD or 80mm ERF Learn More -
FC100 FlatCap Imaging Diffuser
$85.00FC100 Flat Cap Imaging Diffuser fits 90-99mm tube OD Learn More -
Daystar Instruments QUARK for Questar PROMINENCE Filter
$1,295.00In Stock!
Daystar Instruments QUARK is the first Hydrogen Alpha "Eyepiece"
PROMINENCE MODEL ***FOR QUESTAR TELESCOPES ONLY***This new, All-In-One design marries high quality components of all adapters, snouts and Daystar hydrogen alpha filter into one simple assembly. Through design efficiency and optimization, now users can enjoy the known high quality optics of DayStar* at an affordable price.
Quark is available in a choice of "prominence" or "chromosphere"
Learn More
~ Choose either for the same, low price ~
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