Product series:
The Ultra-Narrowband series comprises line filters with a very narrow full width at half maximum, recommended for optical systems with an aperture ratio of f/10 to f/3.5.
Due to the low full width at half maximum, the filters allow maximum contrast even in severe light pollution conditions. They minimise the size of stars and thus make the finest details accessible – indispensable under Bortle class 9/8/7/(6) skies.
Baader
Filters H-alpha/OIII/SII CMOS Ultra-Narrowband 36mm
$ 1,010.00
ready for shipping in 1-2
weeks
Baader
Filters H-alpha/OIII/SII CMOS Ultra-Narrowband 31mm
$ 840.00
ready for shipping in 1-2
weeks
Baader
Filters H-alpha/OIII/SII CMOS Ultra-Narrowband 1.25"
$ 790.00
ready for shipping in 1-2
weeks
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Filters H-alpha CMOS Ultra-Narrowband 65x65mm
$ 650.00
ready for shipping in 1-2
weeks
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Filters SII CMOS Ultra-Narrowband 65x65mm
$ 580.00
ready for shipping in 1-2
weeks
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Filters OIII CMOS Ultra-Narrowband 65x65mm
$ 580.00
ready for shipping in 1-2
weeks