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Filtre OIII 7nm 50,8mm - ZWO

Filtre OIII 7nm 50,8mm - ZWO

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€325,00 EUR
€325,00 EUR
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The ZWO O-III 7nm narrowband filter is specifically designed for astrophotography, providing exceptional contrast for celestial objects emitting doubly ionized oxygen.

  • Wavelength: 500.7 nm
  • Bandwidth: FWHM 7 nm (+/-0.5)
  • Diameter: 50.8 mm
  • CNC machined aluminum cell
  • 1.85 mm thick Schott glass
  • Double-sided optical coating with anti-reflective treatment
  • Precise optical polishing for a parallelism <30" arc on both surfaces
  • 90% transmission on the O-III line (500.7 nm)
  • High contrast against the sky background
  • Reduction of public lighting effects
  • Compatible with CCD imaging and digital photography
  • Available in 31.7 mm / 50.8 mm and 31 mm / 36 mm circular unmounted formats
  • OIII 7nm filter ZWO
  • Aluminum cell
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