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Set di filtri Ha, SII e OIII 7nm 50,8mm per l'astronomia - ZWO

Set di filtri Ha, SII e OIII 7nm 50,8mm per l'astronomia - ZWO

zwo-zwset7nm_d2

Disponible sous 7 jours

€925,00 EUR
€925,00 EUR
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The ZWO narrowband filters Ha, SII, and OIII 7nm are specially designed for astrophotography, allowing for the creation of "Hubble-like" quality images. By selectively reducing the transmitted wavelengths, these filters eliminate the effects of street lighting and the Moon, providing high contrast for many nebulae.

  • Bandwidth: FWHM 7nm (+/-0.5)
  • 90% transmission on Ha/S-II/O-III lines
  • Cut-off in the infrared (700/1100nm)
  • Schott glass
  • Glass thickness: 1.85mm
  • Precise optical polishing for a wavefront at lambda/4 and a parallelism <30" arc on both surfaces
  • Double-sided optical coating with anti-reflective treatment
  • CNC machined aluminum cell construction
  • Available in 4 formats: 31.7/50.8mm clamping and 31mm/36mm circular unmounted
  • Allows for Hubble quality images
  • Eliminates the effects of street lighting and the Moon
  • Provides high contrast for many nebulae
  • Precise transmission thanks to a bandwidth of 7nm
  • High manufacturing precision due to CNC machining
  • Compatible with astrophotography devices requiring 50.8mm filters
  • Available in clamping and circular formats for various uses
  • Ha, SII, and OIII 7nm filters
  • CNC machined aluminum cell
  • User documentation
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