Baader O-III Filter (10nm) visual 1¼" and 2"
For observations of planetary nebulae at the highest
image contrast
image contrast
O-III Filter 1¼" (10nm) visuell
Stock
O-III Filter 2" (10nm) visuell
Stock
Description
- 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