Baader Ultra-Narrowband 3.5nm H-alpha CCD-Filter 1¼", LPFC-mounted

Product code: 2459451
in stock
£189.17 (ex. VAT)

PREORDER : 2 weeks

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Product information

  • Precision grade enforced H-alpha filter for f/10 to f/3.5 optical systems
  • Opens up the extremely narrow 3,5nm H-alpha world
  • This enforced contrast results in even fainter stars, providing more signal of faintest nebulae detail
  • Manufacturing such ultra-narrow filter does require extreme coating homogeneity and very high CWL precision, which these filters are designed for. CWL= Center-wavelength / FWHM= full width half maximum.

Note: In general this DeepSky Ultra-Narrowband H-alpha Filter is not suitable for solar observation. The Halfbandwidth of 3,5nm equals 35 Ångstroem, high-quality H-alpha solar filter from SolarSpectrum start at 0.8 Ångstroem. At favorable conditions experiments might still be possible, although at lesser quality.

Product Info

PREORDER 2 weeks
EAN 4047825103550
GTIN 4047825103550
Brand Baader
Product Code 2459451
Delivery Weight Package