FC100 Flat Cap Imaging Diffuser fits 90-99mm tube OD Learn More

FC90 Flat Cap Imaging Diffuser fits 80-89mm tube OD or 63mm ERF Learn More

Eliminate waves of interference on monchromatic solar images with this handy adapter. C thread on front and rear. Learn More

5.0Å PE Quantum Solar Filter, Calcium H line. For use with refractors, SCTs, Maksutovs. Includes front and rear plates, power supply, instructions, and hard case. Requires UV/IR cut filter, plus Powermate barlow or stop down mask to reach F/13-F/35 focal ratio for best performance (sold separately). Learn More

Eliminate waves of interference on monchromatic solar images with this handy adapter. T thread on front and rear. Learn More

Automobile style cigarette lighter cord for powering Quantum filters from a car or portable 12VDC power source. Learn More

Alligator style clips for powering Quantum filters off a battery. Learn More

Clean & Check of existing DayStar solar filter. Learn More

Restoration of blocker & trimmer filters on Quantum SE / ATM models of DayStar Solar Filters that are out of warranty. Learn More