Solar System Filter Wheel with 0.4 PE Ha / 0.7 PE Ha / 0.3 PE HeD3 / 5 CaH

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Solar System Filter Wheel, with 0.4 PE H Alpha, 0.7 PE H Alpha, 0.3 PE Helium D3, and 5A Calcium H. 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).