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Filtro Noturno circular, diâmetro 67mm

Modelo: KF01.1117

Does this block mercury vapor light too?
Answer Question
LPRs are designed to filter both mercury vapor and sodium spectral lines. I cannot answer via personal observation how good of a job it filters Mercury Vapor as my city phased those out long ago. Of note, I would classify this filter as a broadband filter, if you have a higher amount of light pollution you might opt for a narrowband or line filter instead to see better results.