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
$ 530.00
ready for shipping in 1-2
weeks

Baader
Filters H-alpha/OIII/SII CMOS Narrowband 1.25"
$ 442.00
ready for shipping in 1-2
weeks

Baader
Filters H-Beta CMOS Narrowband 2"
$ 336.00
ready for shipping in 1-2
weeks

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

Baader
Filters SII CMOS Narrowband 2"
$ 260.00
ready for shipping in 1-2
weeks

Baader
Filters H-alpha/OIII/SII CMOS Narrowband 50x50mm
$ 910.00
ready for shipping in 1-2
weeks

Baader
Filters H-Beta CMOS Narrowband 1.25"
$ 211.00
ready for shipping in 1-2
weeks

Baader
Filters H-alpha CMOS Narrowband 1.25"
$ 158.00
ready for shipping in 1-2
weeks

Baader
Filters SII CMOS Narrowband 31mm
$ 162.00
ready for shipping in 1-2
weeks

Baader
Filters OIII CMOS Narrowband 1.25"
$ 155.00
ready for shipping in 1-2
weeks

Baader
Filters Narrowband SII CMOS 1.25"
$ 153.00
ready for shipping in 1-2
weeks

Baader
Filters OIII CMOS Narrowband 2"
$ 262.00
ready for shipping in 1-2
weeks

Baader
Filters H-alpha/OIII/SII CMOS Narrowband 2"
$ 750.00
ready for shipping in 24
h

Baader
Filters OIII CMOS Narrowband 50.4mm
$ 313.00
ready for shipping in 1-2
weeks

Baader
Filters H-alpha/OIII/SII CMOS Narrowband 31mm
$ 466.00
ready for shipping in 1-2
weeks

Baader
Filters H-Beta CMOS Narrowband 36mm
$ 245.00
ready for shipping in 1-2
weeks

Baader
Filters H-alpha/OIII/SII CMOS Narrowband 65x65mm
$ 1,160.00
ready for shipping in 1-2
weeks

Baader
Filters H-Beta CMOS Narrowband 50,4mm
$ 358.00
ready for shipping in 1-2
weeks

Baader
Filters H-alpha/OIII/SII CMOS Narrowband 50.4mm
$ 860.00
ready for shipping in 1-2
weeks

Baader
Filters OIII CMOS Narrowband 36mm
$ 187.00
ready for shipping in 1-2
weeks

Baader
Filters H-Beta CMOS Narrowband 65x65mm
$ 495.00
ready for shipping in 1-2
weeks

Baader
Filters SII CMOS Narrowband 65x65mm
$ 402.00
ready for shipping in 24
h

Baader
Filters H-alpha CMOS Narrowband 65x65mm
$ 409.00
ready for shipping in 1-2
weeks

Baader
Filters OIII CMOS Narrowband 65x65mm
$ 404.00
ready for shipping in 1-2
weeks

Baader
Filters H-Beta CMOS Narrowband 50x50mm
$ 392.00
ready for shipping in 1-2
weeks

Baader
Filters SII CMOS Narrowband 50x50mm
$ 323.00
ready for shipping in 24
h

Baader
Filters SII CMOS Narrowband 50.4mm
$ 311.00
ready for shipping in 1-2
weeks

Baader
Filters H-alpha CMOS Narrowband 50.4mm
$ 279.00
ready for shipping in 1-2
weeks

Baader
Filters H-Beta CMOS Narrowband 31mm
$ 222.00
ready for shipping in 1-2
weeks

Baader
Filters H-alpha CMOS Narrowband 36mm
$ 188.00
ready for shipping in 1-2
weeks

Baader
Filters SII CMOS Narrowband 36mm
$ 186.00
ready for shipping in 1-2
weeks

Baader
Filters H-alpha CMOS Narrowband 31mm
$ 165.00
ready for shipping in 1-2
weeks

Baader
Filters OIII CMOS Narrowband 31mm
$ 163.00
ready for shipping in 1-2
weeks

Baader
Filters OIII CMOS Narrowband 50x50mm
$ 324.00
ready for shipping in 24
h

Baader
Filters H-alpha CMOS Narrowband 50x50mm
$ 319.00
ready for shipping in 24
h