Features:
- 65 x 65 mm x 3 mm Baader H-alpha / O-III / S-II Narrowband Filter Set – Precision Grade
- 6.5 nm FWHM, recommended for optical systems from f/10 to f/3.5
- 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
- Increased contrast
- Ever more narrow passbands
- Reflex-Blocker™ coatings, for largest ever freedom from halos, even under most adverse conditions concerning aux-optics
- FWHM on each filter category carefully designed to allow for 1:1:1 exposures, matched for typical CMOS quantum efficiency and s/n ratio
- Identical filter thickness to existing standards, with utmost care for parfocality
- Blackened edges all around, with filter-lead-side-indicator in the form of a black frontside outer rim, to additionally eliminate any reflection due to light falling onto the edge of a filter
- Each filter coated individually, with sealed coating edge (NOT cut out of a larger plate with coatings left exposed)
- Life-Coat™: evermore hard coatings to enable a non-aging coating for life – even in a most adverse environment
Specifications:
- MANUFACTURER Baader Planetarium
- SKU (#) 2961656
- EAN CODE 4047825103956
- NET WEIGHT (KG) 0.26
- COLOUR Black
- TRANSMISSION RANGE H-alpha / O-III / S-II
- FILTER THICKNESS (WITHOUT CELL) 3 mm
- HBW (HALFBANDWIDTH) 6.5 nm
- CWL (CENTRAL WAVELENGTH) 656,3 nm / 500,7 nm / 671,7 nm
- AR-COATING Reflex-Blocker™ hard-coated, plane optically polished
- SPECIAL FEATURES CMOS-optimized with Life-Coat™
- FILTER SIZE 65 x 65 mm
- FILTER USAGE CMOS, CCD, H-alpha, O-III, S-II
- FILTER MOUNTED Unmounted
- TYPE OF FILTER Narrowband
- SINGLE OR SET? Filter-Set
- FILTER SHAPE square
Kit content
Baader 6.5nm Narrowband 65x65mm CMOS optimized Filterset
Filter cleaning cloth
Filter box
User guide
For more information about, Baader 6.5nm Narrowband 65x65mm CMOS optimized Filterset website.
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