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 CMOS f/2 Highspeed 31mm
$ 168.00
ready for shipping in 1-2
weeks
Baader
Filters OIII CMOS f/2 Highspeed 36mm
$ 187.00
ready for shipping in 24
h
Baader
Filters H-alpha CMOS f/2 Highspeed 36mm
$ 189.00
ready for shipping in 1-2
weeks
Baader
Filters OIII Highspeed f/2 31mm
Sale price:
$ 176.00
$ 95.93
ready for shipping in 24
h
Baader
Filters OIII CMOS f/2 Highspeed 31mm
Sale price:
$ 170.00
$ 106.71
ready for shipping in 24
h
Baader
Filters SII CMOS f/2 Highspeed 31mm
Sale price:
$ 171.00
$ 128.27
ready for shipping in 24
h
Baader
Filters SII CMOS f/2 Highspeed 36mm
Sale price:
$ 188.00
$ 117.49
ready for shipping in 24
h