Above image shows:
H-Beta Filter, Visual Back SCT
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List of all products made by
Lumicon
Manufactured by: Lumicon
Lumicon Hydrogen-Beta Filter The Lumicon H-Beta Filter isolates only the Hydrogen-beta line of the spectrum (486.5nm) while blocking, completely, the rest of the overall spectrum of light. The result is extreme contrast between the black background of sp (read more)
