Astronomik - CLS CCD Light Pollution Filter - 50mm Round Unmounted

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Availability: In stock

  • 92% transmission at 486nm (H-beta)

  • 92% transmission at 496nm (OIII)

  • 92% transmission at 501nm (OIII)

  • 97% transmission at 656nm (H alpha)

  • Pass from 450 to 540nm and from 640 to 690nm

  • Parfocal with other Astronomik filters

  • Glass thickness: 1mm

  • Completely resistant against high humidity, scratches and aging effects

  • Diffraction limited, the filter will not reduce the optical performance of your telescope!

  • Astronomik filters are delivered in a high-quality, long lasting, filter box

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