圖片僅作供參考，並不代表產品實物及所包括配件。 Pictures shown are for illustration purpose only and may not be an exact representation of the product and accessories included.
Description
Enhance imaging of nebulae with your 8” Rowe-Ackermann Schmidt Astrograph (RASA) by blocking light pollution, improving image contrast, and darkening the sky background.
This filter transmits only the key Hα-Hβ-OIII wavelengths from emission nebulae, providing high contrast that makes them "pop.”
This filter selectively blocks wavelengths of light from sources of light polluted skies and natural sky glow.
Unlike similar filters with narrower bandpasses, this filter was engineered specifically to work with RASA’s fast F/2 optics.
Fits into the 8” RASA’s integrated filter mount, maintaining peak optical performance.
Optically flat surfaces free of defects, constructed of Schott glass with anti-reflection coatings.
