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 1.25"
$ 439.00
ready for shipping in 1-2
weeks
Baader
Filters H-alpha/OIII/SII CMOS f/2 Highspeed 31mm
$ 466.00
ready for shipping in 1-2
weeks
Baader
Filters OIII CMOS f/2 Highspeed 65x65mm
$ 378.00
ready for shipping in 24
h
Baader
Filters H-alpha CMOS f/2 Highspeed 65x65mm
$ 382.00
ready for shipping in 1-2
weeks
Baader
Filters H-alpha/OIII/SII CMOS f/2 Highspeed 36mm
$ 520.00
ready for shipping in 1-2
weeks
Baader
Filters SII CMOS f/2 Highspeed 65x65mm
$ 379.00
ready for shipping in 24
h