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Baader 31.7mm ND-1.8 Neutral Density Filter |
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The Baader filter offers perfect energy management during Lunar and Solar observation. The high tech design offers no reflections, stray light and ghosting. Baader's special filter cell design offers unique features that enhance their reliability and usability. The ultra-thin filter cell results in the maximum possible clear aperture, in order to minimize vignetting. The special threading has been designed to fit the wide variety of eyepieces and accessories. This filter is designed for 1.25 inch eyepieces. The ND filter reduces the overall brightness of an image to cut down glare while viewing bright astronomical objects through a telescope. Baader balances each dielectric coating stack to avoid the ghosts and annoying halos that plague other manufacturers filters. Unlike most other filters, Baader filters are truly designed to be stacked and combined. This is possible due to the high optical quality and highly efficient anti-reflection multicoatings. The ability to combine filters opens up many interesting possibilities, permitting unique spectral characteristics unachievable with any single filter. |
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News Baader 31.7mm ND-1.8 Neutral Density Filter
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