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Alpine Astronomical Baader 3.5/4nm f/3 Ultra-High-Speed Filter Set CMOS-Optimized (50.4mm, Unmounted)
Key Features
- 3-Filter Set: H-alpha, O-III, and S-II
- For f/3.4 to f/2.3 Optical Systems
- CMOS-Optimized and Suitable for CCDs
- Reflex-Blocker / Life-Coat
The 50.4mm, unmounted Baader 3.5/4nm f/3 Ultra-High-Speed Filter Set from Alpine Astronomical features three precision-grade filters recommended for extremely fast optical systems from f/3.4 to f/2.3. The set includes H-alpha, O-III, and S-II filters optimized for use with CMOS sensor cameras and suitable for CCD sensors.
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Expected availability: 2-4 Weeks
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