Baader S-II 31mm f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized [BA-FCSIIHSU-RD31]
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31 mm x 2 mm Baader S-II f/2 Ultra-Highspeed Filter – Premium Grade 4 nm FWHM, recommended for extremely fast optical systems from f/3.4 to f/1.8 Specially designed for the special filter requirements when used with fast 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 SKU 2961526
About Baader S-II 31mm f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized [BA-FCSIIHSU-RD31]
Baader: Baader S-II 31mm f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized
- 31 mm x 2 mm Baader S-II f/2 Ultra-Highspeed Filter – Premium Grade
- 4 nm FWHM, recommended for extremely fast optical systems from f/3.4 to f/1.8
- Specially designed for the special filter requirements when used with fast 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
SKU 2961526
- MANUFACTURER Baader Planetarium
- SKU (#) 2961526
- EAN CODE 4047825048110
- NET WEIGHT (KG) 0.06
- COLOUR Black
- 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, planeoptically polished
- SPECIAL FEATURES CMOS-optimized with Life-Coat™
- FILTER SIZE 31 mm
- FILTER USAGE CMOS, CCD, S-II
- FILTER MOUNTED Unmounted
- TYPE OF FILTER f/2 Ultra-Highspeed
- SINGLE OR SET? Single Filter
- FILTER SHAPE round
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