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2" UHC-L filter Beta model 2961563 Ultra-L-Booster for astronomical telescopes
Summary description:
2-inch UHC-L filter Beta 2961563 (Ultra-L-Booster) is an optical nebula filter designed for astronomical observation. Mounted in a 2" cell, it enhances contrast of emission nebulae by selectively transmitting key wavelengths while reducing background skyglow. Suitable for visual observing and imaging on telescopes with 2" eyepieces or camera adapters, it helps reveal faint nebular details and improves viewing from light-polluted sites.