Features:
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:
- NET WEIGHT (KG) 0.06-0.09NET WEIGHT (KG) 0.06-0.09
- COLOUR Black
- TRANSMISSION RANGE S-II
- FILTER THICKNESS (WITHOUT CELL) 2 mm (3mm D50.4 – 65x65mm)
- HBW (HALFBANDWIDTH) 6.5 nm
- CWL (CENTRAL WAVELENGTH) 671,7 nm
- AR-COATING Reflex-Blocker™ hard coated, planeoptically polished
- SPECIAL FEATURES CMOS-optimized with Life-Coat™
- FILTER SIZE 1 25 inch – 65mmx65mm
- FILTER USAGE CMOS, CCD, S-II
- FILTER MOUNTED Mounted (LPFC 6mm) / Unmounted
- TYPE OF FILTER Narrowband
- SINGLE OR SET? Single Filter
- FILTER SHAPE round/square
For more information about, Baader S-II 65x65mm Narrowband-Filter 6.5nm CMOS Optimized website.
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