Our 2″ Light Pollution Reduction (LPR) Filters have been
designed to reduce the transmission of certain wavelengths of light,
especially those that are generated by artificial light,
to reduce selectively. These include mercury vapor,
High and low pressure sodium vapor lamps and the unwanted
natural light caused by neutral oxygen emissions in our
atmosphere (e.g. sky mica) is caused.
CHF 179.90
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