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 SII CMOS Narrowband 50.4mm](/Produktbilder/normal/70869_1/Baader-Filters-SII-CMOS-Narrowband-50-4mm.jpg)
Baader
Filters SII CMOS Narrowband 50.4mm
$ 292.00
ready for shipping in 24
h
![Baader Filters Narrowband SII CMOS 1.25"](/Produktbilder/normal/70865_1/Baader-Filters-Narrowband-SII-CMOS-1-25-.jpg)
Baader
Filters Narrowband SII CMOS 1.25"
$ 144.00
ready for shipping in 1-2
weeks
![Baader Filters SII CMOS Narrowband 31mm](/Produktbilder/normal/70866_1/Baader-Filters-SII-CMOS-Narrowband-31mm.jpg)
Baader
Filters SII CMOS Narrowband 31mm
$ 152.00
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
$ 175.00
ready for shipping in 1-2
weeks
![Baader Filters SII CMOS Narrowband 2"](/Produktbilder/normal/70868_1/Baader-Filters-SII-CMOS-Narrowband-2-.jpg)
Baader
Filters SII CMOS Narrowband 2"
$ 244.00
ready for shipping in 1-2
weeks
![Baader Filters SII CMOS Narrowband 50x50mm](/Produktbilder/normal/70870_1/Baader-Filters-SII-CMOS-Narrowband-50x50mm.jpg)
Baader
Filters SII CMOS Narrowband 50x50mm
Sale price:
$ 304.00
$ 191.28
ready for shipping in 24
h
![Baader Filters SII CMOS Narrowband 65x65mm](/Produktbilder/normal/70871_1/Baader-Filters-SII-CMOS-Narrowband-65x65mm.jpg)
Baader
Filters SII CMOS Narrowband 65x65mm
Sale price:
$ 378.00
$ 234.02
ready for shipping in 24
h