Double-sided fine polishing and polishing process ensures high parallelism Coating: double-sided multi-layer coating, the backside increases the penetration film and reduces the reflect light This 1.25inch UHC filter is designed to improve the picture contrast of the subject Substrates: polish substrates, good parallelism and surfaces Diameter: 1.25 " simply attached to the eyepiece, installed in a shells High contrast filter ( UHC filter) is of harmful light filter, it is more perfect Significantly reduce light pollution, suitable for city and suburban observation
Double-sided fine polishing and polishing process ensures high parallelism Coating: double-sided multi-layer coating, the backside increases the penetration film and reduces the reflect light This 1.25inch UHC filter is designed to improve the picture contrast of the subject Substrates: polish substrates, good parallelism and surfaces Diameter: 1.25 " simply attached to the eyepiece, installed in a shells High contrast filter ( UHC filter) is of harmful light filter, it is more perfect Significantly reduce light pollution, suitable for city and suburban observation
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