Features: Baader S-II 1¼ Inches f/3 Ultra Highspeed Filter - 4nm
- 1¼" x 2 mm Baader CMOS S-II f/3 Ultra-Highspeed Filter – Premium Grade – with 1¼" (28,5 mm) filter thread
- 4 nm FWHM, recommended for fast optical systems from f/3.4 to f/2.3
Specially designed for the special filter requirements when used with fast f/3 optics - 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
- Mounted in Baader Low Profile Filter Cell (LPFC) – 6 mm height
Specifications: Baader S-II 1¼ Inches f/3 Ultra Highspeed Filter - 4nm
- Manufacturer: Baader Planetarium
- SKU (#) 2961500
- EAN CODE: 4047825048035
- SUITABLE FOR F/RATIO: f/3.4 to f/2.3
- Transmission range: S-II
- Filter thickness (WITHOUT CELL): 2 mm
- HBW (HALFBANDWIDTH): 4 nm
- CWL (CENTRAL WAVELENGTH): 671,7 nm
- AR-Coating: Reflex-Blocker™ hard-coated, plane optically polished
- Special features: CMOS-optimiert mit Life-Coat™
- Filter Size: 1.25 inch
- Filter usage: CMOS, CCD, S-II
- Filter Mounted: Mounted (LPFC 6mm)
- Type of filter: f/3 Ultra-Highspeed
- Weight: 60 grams
Kit content
Baader S-II 1¼ Inches f/3 Ultra Highspeed Filter - 4nm
Lens cleaning cloth
Filter box
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