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H-Alpha Filter 7nm ZWO 36mm circular unmounted - ZWO

H-Alpha Filter 7nm ZWO 36mm circular unmounted - ZWO

zwo-zwha7_36c

Disponible sous 7 jours

€209,00 EUR
€209,00 EUR
In vendita Épuisé
Coût expédition: ~
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The ZWO H-Alpha 7nm filter is specially designed for astrophotography, focusing on the wavelength of 656nm. In combination with the O-III and S-II filters, it allows for images similar to those of the Hubble Space Telescope. This filter selectively reduces the transmitted wavelengths, eliminating the effects of street lighting and the Moon, while providing significant contrast for celestial objects emitting in H-alpha.

  • Transmission wavelength: 656nm (H-Alpha)
  • Bandwidth: 7nm (FWHM)
  • Material: High-quality Schott glass
  • CNC machined aluminum cell for maximum accuracy
  • Availability: 31.7mm and 50.8mm, as well as 31mm and 36mm unmounted circular
  • Double-sided anti-reflective optical coating
  • Glass thickness: 1.85mm
  • Parallelism < 30" arc on both surfaces
  • Enhances the contrast of hydrogen nebulae
  • Reduces the intensity and number of bright stars in the field of view
  • Eliminates the effects of street lighting and the Moon for clearer images
  • Easy to combine with the O-III and S-II filters for "Hubble like" images
  • Compatible with O-III and S-II filters for advanced astrophotography
  • Suitable for CCD photography systems and modified digital photography housings
  • Unmounted circular H-Alpha 7nm filter
  • CNC machined aluminum cell
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