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-Beta CMOS Narrowband 2"
$ 316.00
ready for shipping in 1-2
weeks
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Filters H-Beta CMOS Narrowband 1.25"
$ 198.00
ready for shipping in 1-2
weeks
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Filters H-Beta CMOS Narrowband 31mm
$ 209.00
ready for shipping in 1-2
weeks
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Filters H-Beta CMOS Narrowband 36mm
$ 230.00
ready for shipping in 1-2
weeks
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Filters H-Beta CMOS Narrowband 50,4mm
$ 337.00
ready for shipping in 1-2
weeks
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Filters H-Beta CMOS Narrowband 50x50mm
$ 369.00
ready for shipping in 1-2
weeks
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Filters H-Beta CMOS Narrowband 65x65mm
$ 465.00
ready for shipping in 1-2
weeks