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.
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Filters OIII CMOS f/2 Highspeed 36mm
$ 186.00
ready for shipping in 24
h
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Filters OIII CMOS f/2 Highspeed 31mm
Sale price:
$ 169.00
$ 106.11
ready for shipping in 24
h
Baader
Filters OIII Highspeed f/2 31mm
Sale price:
$ 175.00
$ 95.39
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h
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Filters OIII CMOS f/2 Highspeed 50.4mm
Sale price:
$ 271.00
$ 170.42
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h
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Filters OIII CMOS f/2 Highspeed 50x50mm
Sale price:
$ 309.00
$ 191.85
ready for shipping in 24
h
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Filters OIII CMOS f/2 Highspeed 65x65mm
Sale price:
$ 387.00
$ 234.72
ready for shipping in 24
h