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Svbony 7nm Sii Filter 2 Inch
$155 plus postage
SVBONY Sulfur II 7nm Extra Narrowband Filter transmits a 7nm bandwidth of light that is centered at 672nm and drastically reduces other transmissions; including wavelengths of light that are responsible for light pollution
Quality lens material;The SVBONY 2inch filters are made with Schott glass that has been multi-coated with an ion-assisted deposition technology to ensure scratch resistance and stability on the central wavelength or CWL
Last edited by CoolhandJo; 28-06-2024 at 10:45 PM.
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