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/OIII/SII CMOS Narrowband 36mm
$ 510.00
ready for shipping in 1-2
weeks

Baader
Filters H-alpha/OIII/SII CMOS Narrowband 1.25"
$ 421.00
ready for shipping in 1-2
weeks

Baader
Filters H-Beta CMOS Narrowband 2"
$ 319.00
ready for shipping in 1-2
weeks

Baader
Filters H-alpha CMOS Narrowband 2"
$ 254.00
ready for shipping in 1-2
weeks

Baader
Filters SII CMOS Narrowband 2"
$ 247.00
ready for shipping in 1-2
weeks

Baader
Filters H-alpha/OIII/SII CMOS Narrowband 50x50mm
$ 870.00
ready for shipping in 1-2
weeks

Baader
Filters H-Beta CMOS Narrowband 1.25"
$ 200.00
ready for shipping in 1-2
weeks

Baader
Filters H-alpha CMOS Narrowband 1.25"
$ 151.00
ready for shipping in 1-2
weeks

Baader
Filters SII CMOS Narrowband 31mm
$ 154.00
ready for shipping in 1-2
weeks

Baader
Filters OIII CMOS Narrowband 1.25"
$ 147.00
ready for shipping in 1-2
weeks

Baader
Filters Narrowband SII CMOS 1.25"
$ 145.00
ready for shipping in 1-2
weeks

Baader
Filters OIII CMOS Narrowband 2"
$ 249.00
ready for shipping in 1-2
weeks

Baader
Filters H-alpha/OIII/SII CMOS Narrowband 2"
$ 720.00
ready for shipping in 24
h

Baader
Filters OIII CMOS Narrowband 50.4mm
$ 297.00
ready for shipping in 1-2
weeks

Baader
Filters H-alpha/OIII/SII CMOS Narrowband 31mm
$ 443.00
ready for shipping in 1-2
weeks

Baader
Filters H-Beta CMOS Narrowband 36mm
$ 233.00
ready for shipping in 1-2
weeks

Baader
Filters H-alpha/OIII/SII CMOS Narrowband 65x65mm
$ 1,100.00
ready for shipping in 1-2
weeks

Baader
Filters H-Beta CMOS Narrowband 50,4mm
$ 341.00
ready for shipping in 1-2
weeks

Baader
Filters H-alpha/OIII/SII CMOS Narrowband 50.4mm
$ 810.00
ready for shipping in 1-2
weeks

Baader
Filters OIII CMOS Narrowband 36mm
$ 178.00
ready for shipping in 1-2
weeks

Baader
Filters H-Beta CMOS Narrowband 65x65mm
$ 470.00
ready for shipping in 1-2
weeks

Baader
Filters SII CMOS Narrowband 65x65mm
$ 382.00
ready for shipping in 24
h

Baader
Filters H-alpha CMOS Narrowband 65x65mm
$ 389.00
ready for shipping in 1-2
weeks

Baader
Filters OIII CMOS Narrowband 65x65mm
$ 384.00
ready for shipping in 1-2
weeks

Baader
Filters H-Beta CMOS Narrowband 50x50mm
$ 373.00
ready for shipping in 1-2
weeks

Baader
Filters SII CMOS Narrowband 50x50mm
$ 307.00
ready for shipping in 24
h

Baader
Filters SII CMOS Narrowband 50.4mm
$ 295.00
ready for shipping in 1-2
weeks

Baader
Filters H-alpha CMOS Narrowband 50.4mm
$ 265.00
ready for shipping in 1-2
weeks

Baader
Filters H-Beta CMOS Narrowband 31mm
$ 211.00
ready for shipping in 1-2
weeks

Baader
Filters H-alpha CMOS Narrowband 36mm
$ 179.00
ready for shipping in 1-2
weeks

Baader
Filters SII CMOS Narrowband 36mm
$ 176.00
ready for shipping in 1-2
weeks

Baader
Filters H-alpha CMOS Narrowband 31mm
$ 157.00
ready for shipping in 1-2
weeks

Baader
Filters OIII CMOS Narrowband 31mm
$ 155.00
ready for shipping in 1-2
weeks

Baader
Filters OIII CMOS Narrowband 50x50mm
$ 308.00
ready for shipping in 24
h

Baader
Filters H-alpha CMOS Narrowband 50x50mm
$ 303.00
ready for shipping in 24
h