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-alpha CMOS Narrowband 1.25"
$ 163.00
ready for shipping in 1-2
weeks

Baader
Filters OIII CMOS Narrowband 1.25"
$ 159.00
ready for shipping in 1-2
weeks

Baader
Filters H-alpha/OIII/SII CMOS Narrowband 2"
$ 770.00
ready for shipping in 1-2
weeks

Baader
Filters H-Beta CMOS Narrowband 2"
$ 345.00
ready for shipping in 1-2
weeks

Baader
Filters SII CMOS Narrowband 2"
$ 267.00
ready for shipping in 1-2
weeks

Baader
Filters H-Beta CMOS Narrowband 1.25"
$ 217.00
ready for shipping in 1-2
weeks

Baader
Filters OIII CMOS Narrowband 2"
$ 269.00
ready for shipping in 1-2
weeks

Baader
Filters OIII CMOS Narrowband 50.4mm
$ 322.00
ready for shipping in 1-2
weeks

Baader
Filters H-alpha/OIII/SII CMOS Narrowband 36mm
$ 550.00
ready for shipping in 1-2
weeks

Baader
Filters H-alpha/OIII/SII CMOS Narrowband 31mm
$ 480.00
ready for shipping in 1-2
weeks

Baader
Filters H-Beta CMOS Narrowband 36mm
$ 252.00
ready for shipping in 1-2
weeks

Baader
Filters H-alpha/OIII/SII CMOS Narrowband 1.25"
$ 455.00
ready for shipping in 1-2
weeks

Baader
Filters H-alpha/OIII/SII CMOS Narrowband 65x65mm
$ 1,190.00
ready for shipping in 1-2
weeks

Baader
Filters H-Beta CMOS Narrowband 50,4mm
$ 369.00
ready for shipping in 1-2
weeks

Baader
Filters H-alpha/OIII/SII CMOS Narrowband 50x50mm
$ 940.00
ready for shipping in 1-2
weeks

Baader
Filters H-alpha/OIII/SII CMOS Narrowband 50.4mm
$ 880.00
ready for shipping in 1-2
weeks

Baader
Filters H-alpha CMOS Narrowband 2"
$ 275.00
ready for shipping in 1-2
weeks

Baader
Filters SII CMOS Narrowband 31mm
$ 166.00
ready for shipping in 1-2
weeks

Baader
Filters OIII CMOS Narrowband 36mm
$ 192.00
ready for shipping in 1-2
weeks

Baader
Filters Narrowband SII CMOS 1.25"
$ 157.00
ready for shipping in 1-2
weeks

Baader
Filters H-Beta CMOS Narrowband 65x65mm
$ 510.00
ready for shipping in 1-2
weeks

Baader
Filters H-alpha CMOS Narrowband 65x65mm
$ 421.00
ready for shipping in 1-2
weeks

Baader
Filters OIII CMOS Narrowband 65x65mm
$ 415.00
ready for shipping in 1-2
weeks

Baader
Filters H-Beta CMOS Narrowband 50x50mm
$ 404.00
ready for shipping in 1-2
weeks

Baader
Filters SII CMOS Narrowband 50.4mm
$ 319.00
ready for shipping in 1-2
weeks

Baader
Filters H-alpha CMOS Narrowband 50.4mm
$ 287.00
ready for shipping in 1-2
weeks

Baader
Filters H-Beta CMOS Narrowband 31mm
$ 228.00
ready for shipping in 1-2
weeks

Baader
Filters H-alpha CMOS Narrowband 36mm
$ 193.00
ready for shipping in 1-2
weeks

Baader
Filters SII CMOS Narrowband 36mm
$ 191.00
ready for shipping in 1-2
weeks

Baader
Filters H-alpha CMOS Narrowband 31mm
$ 170.00
ready for shipping in 1-2
weeks

Baader
Filters OIII CMOS Narrowband 31mm
$ 168.00
ready for shipping in 1-2
weeks