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This 47.4mm round Baader 6.5nm f/2.0 H-Alpha Highspeed CMOS Filter from Alpine Astronomical is recommended for extremely fast optical systems from f/3.4 to 1.8, and is designed for the special filter requirements of fast optics like Celestron RASA astrographs. This filter is unmounted for use in the Baader FCCT (Filter Changer Camera Tilter). The filter features a Reflex-Blocker hard coating, which has been planeoptically polished, and has Life-Coat sealed edges. It is equally suitable for use with modern CMOS sensors as for older CCD camera technologies.
Alpine Astronomical FCHALHS-2U Specs
| Size | 47.4mm Round, Unmounted for FCCT 2" Slider |
In the Box
- Alpine Astronomical Baader 6.5nm f/2.0 H-Alpha Highspeed CMOS Filter (47.4mm Round, Unmounted for FCCT 2" Slider)
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