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
$ 304.00
ready for shipping in 24
h
![Baader Filters SII CMOS Narrowband 2"](/Produktbilder/normal/70868_1/Baader-Filters-SII-CMOS-Narrowband-2-.jpg)
Baader
Filters SII CMOS Narrowband 2"
$ 254.00
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
$ 316.00
Sale price:
$ 199.07
ready for shipping in 24
h