Baader 6.5nm f/2 Highspeed-Filter-Set 2" – CMOS-optimized (H-alpha / O-III / S-II)

BaaderSKU: BAA2961663
Stock:
filler

Price:
$1,050.00

This new generation of Baader CMOS-filters features:

CMOS-optimized Baader Filters
  • 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, read more)
    • Life-Coat™: evermore hard coatings to enable a non-aging coating for life – even in a most adverse environment
    • 2" x 2 mm Baader H-alpha / O-III / S-II f/2 Highspeed Filter Set – Precision Grade – with 2" (M48) filter thread
    • 6.5 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
    • 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 black frontside outer rim
    • Optimized for modern CMOS cameras, but excellent for CCD camera technologies
    • Mounted in Baader Low Profile Filter Cell (LPFC) – 6 mm height
    NET WEIGHT (KG) 0.20
    COLOUR Black
    TRANSMISSION RANGE H-alpha / O-III / S-II
    FILTER THICKNESS (WITHOUT CELL) 2 mm
    HBW (HALFBANDWIDTH) 6.5 nm
    CWL (CENTRAL WAVELENGTH) 656,3 nm / 500,7 nm / 671,7 nm
    AR-COATING Reflex-Blocker™ hard coated, planeoptically polished
    SPECIAL FEATURES CMOS-optimized with Life-Coat™
    FILTER SIZE 2 inch
    FILTER USAGE CMOS, CCD, H-alpha, O-III, S-II
    FILTER MOUNTED Mounted (LPFC 6mm)
    TYPE OF FILTER f/2 Highspeed
    SINGLE OR SET? Filter-Set
    FILTER SHAPE round


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