Baader O-III Filter (10nm) visual 1¼" and 2"

For observations of planetary nebulae at the highest
image contrast
Further information
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O-III Filter 1¼" (10nm) visuell
Stock
CHF 97.00
O-III Filter 2" (10nm) visuell
Stock
CHF 189.00

  • ultra-hard and bright O-III visual contrast for 6" and larger telescopes
  • no visual color fringing, just pure O-III
  • non-ageing sealed coating edges

1¼" Baader O III filter 10nm with 1¼" screw-in thread.
Only 10nm half-width with the transmission of 93 percent
For observations of planetary nebulae at the highest image contrast
Reflection-free anti-reflective coating and plane-optical polishing

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