Baader filter H-alpha 7nm.
H-alpha narrowband filter (wavelength 656nm)
Incredible contrast for all emission nebulae when using CCD or webcams. Take superb deep sky images directly from the middle of town.
- Premium grade H-alpha full frame chip CCD-filter for fast optical systems f/10 to f/2.8
- NO halos, NO reflections, NO ghosting
- non-ageing sealed coating edges