Baader Filters C2 Swan-Band 15nm 2" (79895)
11824.23 ₽
Tax included
Named after their discoverer, these two emission lines, known as Swan bands, prominently feature in a comet's gas tail spectrum in the visible range. By permitting only the light from these carbon bands to pass through, the filter effectively blocks stray light, akin to a nebula filter in deep-sky observation.