Bandpass Filter

2.4 GHz Ultra High Q 4-Pole Outdoor Bandpass Filter, Full Band

…

Lumicon 1.25 UHC Ultra-High Contrast narrow bandpass filter for 1.25

$99.95

The Original Lumicon Ultra-High Contrast narrow bandpass filter (24nm) isolates just the two doubly-ionized oxygen lines (496 and 501nm lines) and H-Beta line (486nm) emitted by emission and planetary nebulae, while blocking the rest of [...]