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 OIII CMOS f/2 Highspeed 65x65mm
$ 445.00
Sale price:
$ 222.46
ready for shipping in 24
h
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Filters H-alpha/OIII/SII CMOS f/2 Highspeed 1.25"
$ 520.00
ready for shipping in 1-2
weeks
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Filters SII CMOS f/2 Highspeed 65x65mm
$ 447.00
Sale price:
$ 223.61
ready for shipping in 24
h
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Filters SII CMOS f/2 Highspeed 50x50mm
$ 357.00
Sale price:
$ 178.89
ready for shipping in 24
h
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Filters H-alpha/OIII/SII CMOS f/2 Highspeed 31mm
$ 550.00
ready for shipping in 1-2
weeks
Baader
Filters H-alpha CMOS f/2 Highspeed 65x65mm
$ 450.00
ready for shipping in 1-2
weeks
Baader
Filters H-alpha CMOS f/2 Highspeed 50x50mm
$ 364.00
ready for shipping in 1-2
weeks
Baader
Filters OIII CMOS f/2 Highspeed 50x50mm
$ 356.00
ready for shipping in 1-2
weeks