Quantum Sodium D 0.4Å PE

OR

Quick Overview

0.4Å PE Quantum Solar Filter, Sodium D 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/27-F/35 focal ratio for best performance (sold separately).