Features: Baader H-alpha 2 Inches f/2 Filter 3.5nm for FCCT
- 47.4 mm (2" w/o cell) x 2 mm Baader H-alpha f/2 Ultra-Highspeed Filter – Premium Grade
- 3.5 nm FWHM (to harmonize the exposure time with O-III / S-II), recommended for extremely fast optical systems from < f/2.3
- Specially designed for the special filter requirements when used with extremely fast f/2 optics like the Celestron RASA astrographs
- For highest contrast even at strongest light pollution, minimizes star size, emphasizes finest nebula detail – indispensable under Bortle 9/8/7/(6) skies
- Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
- Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
- Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies
Specifications: Baader H-alpha 2 Inches f/2 Filter 3.5nm for FCCT
- Manufacturer: Baader Planetarium
- SKU: 2961378U
- EAN CODE: 4047825051004
- SUITABLE FOR F/RATIO < f/2.3
- Colour: Black
- Transmission range: H-alpha
- FILTER THICKNESS (WITHOUT CELL) 2 mm
- HBW (HALFBANDWIDTH): 3.5 nm
- CWL (CENTRAL WAVELENGTH): 656,3 nm
- AR-COATING: Reflex-Blocker™ hard-coated, plane optically polished
- Special features: CMOS-optimiert mit Life-Coat™
- Filter usage: 47.4 mm (2" w/o cell)
- Filter usage: CMOS, CCD, H-alpha
- Filter mounted: Unmounted
- Type of filter: f/2 Ultra-Highspeed
- SINGLE OR SET?: Single Filter
- Filter shape: round
- Weight: 70 grams
Kit content
Baader H-alpha 2 Inches f/2 Filter 3.5nm for FCCT
Filter box
Lens cleaning cloth
User guide
For more information about, Baader H-alpha 2 Inches f/2 Filter 3.5nm for FCCT website.
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