Product series:
The photography of galactic nebulae with extremely fast optics can only really be effective with the f/2 Highspeed filter.
The full width at half maximum of this filter is optimised for fast apertures of f/1.8 to f/3.5, where despite the high line broadening at this aperture ratio, a high contrast is still possible.
The filters are also ideal for Celestron RASA Astrographs.
![Baader Filters H-alpha/OIII/SII CMOS f/2 Highspeed 31mm](/Produktbilder/normal/70950_1/Baader-Filters-H-alpha-OIII-SII-CMOS-f-2-Highspeed-31mm.jpg)
Baader
Filters H-alpha/OIII/SII CMOS f/2 Highspeed 31mm
$ 496.00
ready for shipping in 1-2
weeks
![Baader Filters H-alpha/OIII/SII CMOS f/2 Highspeed 1.25"](/Produktbilder/normal/70949_1/Baader-Filters-H-alpha-OIII-SII-CMOS-f-2-Highspeed-1-25-.jpg)
Baader
Filters H-alpha/OIII/SII CMOS f/2 Highspeed 1.25"
$ 467.00
ready for shipping in 1-2
weeks
![Baader Filters H-alpha/OIII/SII CMOS f/2 Highspeed 36mm](/Produktbilder/normal/70951_1/Baader-Filters-H-alpha-OIII-SII-CMOS-f-2-Highspeed-36mm.jpg)
Baader
Filters H-alpha/OIII/SII CMOS f/2 Highspeed 36mm
$ 560.00
ready for shipping in 1-2
weeks