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 f/2 Highspeed SII CMOS 1.25"
$ 161.00
ready for shipping in 1-2
weeks
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Filters SII CMOS f/2 Highspeed 2"
$ 264.00
ready for shipping in 1-2
weeks
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Filters f/2 Highspeed SII CMOS 50.4mm
Sale price:
$ 276.00
$ 173.28
ready for shipping in 24
h
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Filters SII CMOS f/2 Highspeed 65x65mm
Sale price:
$ 395.00
$ 238.67
ready for shipping in 24
h
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Filters SII CMOS f/2 Highspeed 50x50mm
Sale price:
$ 315.00
$ 195.07
ready for shipping in 24
h
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Filters SII CMOS f/2 Highspeed 36mm
Sale price:
$ 190.00
$ 118.79
ready for shipping in 24
h
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Filters SII CMOS f/2 Highspeed 31mm
Sale price:
$ 173.00
$ 129.69
ready for shipping in 24
h