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Baader Filtro 500nm 1,25"
Baader Filtro 500nm 1,25"
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Descripción del producto:

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The Baader color filters are carefully made for amateur astronomical purposes. The glasses are finely polished optically . These filters far exceed the quality of the usual, "raw polished" (= hot flamed) colored glass filter.

Thanks to the fine-optical polishing, these filters can be used anywhere in the beam path - far before the focal point (e.g. in front of a binocular approach!) Without causing optical errors (astigmatism) or otherwise deteriorating the image in any way!

Other special features of the Baader filter:

  • Elaborate frame with the largest possible free opening to prevent vignetting
  • CNC-milled "handle crown" - offers excellent handling convenience
  • 7-layer anti-reflective coating on both sides with only 0.25% residual reflection per surface

Green bandpass filter 500nm: Delivers the sharpest images for achromatic and semi-apochromatic refractor objectives (e.g. double star observations)

  • Improves the visibility of CO² hoarfrost and ground fog on Mars
  • Increases the contrast between red and blue regions on Jupiter and Saturn
  • Shows the best contrasts on the moon with radiation craters Tyco, Copernikus and Kepler
Curva de transmitancia luminosa

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