Product series:
The Narrowband series offers line filters with a full width at half maximum of 6.5 nanometres, recommended for optical systems with an aperture ratio of f/10 to f/3.5.
Most telescopes used by amateurs fall within this wide range of recommended aperture ratios. The full width at half maximum is also suitable for optics with a smaller aperture and represents very good value for money.
![Baader Filters H-Beta CMOS Narrowband 1.25"](/Produktbilder/normal/76759_1/Baader-Filters-H-Beta-CMOS-Narrowband-1-25-.jpg)
Baader
Filters H-Beta CMOS Narrowband 1.25"
$ 205.00
ready for shipping in 1-2
weeks
![Baader Filters H-Beta CMOS Narrowband 31mm](/Produktbilder/normal/76760_1/Baader-Filters-H-Beta-CMOS-Narrowband-31mm.jpg)
Baader
Filters H-Beta CMOS Narrowband 31mm
$ 216.00
ready for shipping in 1-2
weeks
![Baader Filters H-alpha CMOS Narrowband 36mm](/Produktbilder/normal/70853_1/Baader-Filters-H-alpha-CMOS-Narrowband-36mm.jpg)
Baader
Filters H-alpha CMOS Narrowband 36mm
$ 183.00
ready for shipping in 1-2
weeks
![Baader Filters OIII CMOS Narrowband 36mm](/Produktbilder/normal/70860_1/Baader-Filters-OIII-CMOS-Narrowband-36mm.jpg)
Baader
Filters OIII CMOS Narrowband 36mm
$ 181.00
ready for shipping in 1-2
weeks
![Baader Filters SII CMOS Narrowband 36mm](/Produktbilder/normal/70867_1/Baader-Filters-SII-CMOS-Narrowband-36mm.jpg)
Baader
Filters SII CMOS Narrowband 36mm
$ 180.00
ready for shipping in 1-2
weeks