Set of 3 BAADER Ultra-Highspeed 3.5 /...
Set of 3 BAADER Ultra-Highspeed 3.5 /...
Set of 3 BAADER Ultra-Highspeed 3.5 /...
Set of 3 BAADER Ultra-Highspeed 3.5 / 4nm F/3 filters in 31mm optimized for CMOS (H-ALPHA / O-III / S-II)
Set of 3 BAADER Ultra-Highspeed 3.5 / 4nm F/3 filters in 31mm optimized for CMOS (H-ALPHA / O-III / S-II)
Set of 3 BAADER Ultra-Highspeed 3.5 / 4nm F/3 filters in 31mm optimized for CMOS (H-ALPHA / O-III / S-II)

Set of 3 BAADER Ultra-Highspeed 3.5 / 4nm F/3 filters in 31mm optimized for CMOS (H-ALPHA / O-III / S-II)

BAD2961641
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Set of 3 Baader Ultra-Highspeed 3.5 / 4nm f/3 in 31mm (unmounted) CMOS optimized filters (H-alpha / O-III / S-II)

Buy it now and receive it between on Thursday, 5 December and Thursday, 12 December with Home delivery - International

Delivery Options
Carrier Description Estimated Delivery
Home delivery - International Home delivery - International

Thursday, 5 December - Thursday, 12 December

Home delivery - International

Home delivery - International

Estimated delivery:
Thursday, 5 December - Thursday, 12 December

 

Set of 3 Baader Ultra-Highspeed 3.5 / 4nm f/3 in 31mm (unmounted) CMOS optimized filters (H-alpha / O-III / S-II)

This new generation of Baader CMOS filters is characterized by

  • CMOS-optimized Baader filters
  • Increased contrast
  • Increasingly narrower pass bands
  • Reflex-Blocker™ coatings, for increased freedom from halos, even under the most adverse conditions related to auxiliary optics
  • FWHM in each filter category carefully designed to allow 1:1:1 exposures, matched to typical CMOS quantum efficiency and s/w ratio
  • Filter thickness identical to existing standards, with the utmost care for parfocality
  • Blackened edges all around, with a filter side indicator in the form of a black outer edge on the front side, to additionally eliminate any reflections due to light falling on the edge of a filter
  • Each filter individually coated, with the coating edge sealed (NOT cut out of a larger plate with coatings left uncovered, read more)
  • Life-Coat™: increasingly harder coatings to allow for a coating that will not age for life, even in the harshest environment
General features:
  • 31mm x 2 mm Baader CMOS H-alpha / O-III / S-II f/3 High Speed Filter Set - Premium Grade
  • 3.5 / 4 nm FWHM (to harmonize the exposure time of H-alpha with O-III / S-II), recommended for fast optical systems from f/3.4 to f/2.3
  • Specially designed for the special requirements of filters when used with fast f/3 optics
  • For maximum contrast even with the highest light pollution, minimizes the size of stars, emphasizes the finest details of nebulae - indispensable under Bortle 9/8/7/(6) skies
  • Reflex-Blocker™ hard-coated and planoptically polished - with sealed coating edges (Life-Coat™)
  • Blackened edges all around, with filter-side indicator in the form of a black outer edge on the telescope side
  • Optimized for modern CMOS cameras, but equally excellent for CCD camera technologies
Technical specifications:
  • MANUFACTURER Baader Planetarium
  • NET WEIGHT (KG) 0.18
  • SUITABLE FOR RATIO F/3.4 to f/2.3
  • TRANSMISSION RANGE H-alpha / O-III / S-II
  • FILTER THICKNESS (WITHOUT FILTER CELL) 2 mm
  • HBW (HALFBANDWIDTH) 3.5 nm (H-alpha) / 4 nm (O-III / S-II)
  • CWL (CENTRAL WAVE LENGTH) 656.3 nm / 500.7 nm / 671.7 nm
  • AR COATING Reflex-Blocker™ hard-coated, flat-optically polished AR COATING
  • SPECIAL FEATURES CMOS-optimized with Life-Coat™
  • FILTER SIZE 31mm
  • CMOS, CCD, H-alpha, O-III, S-II FILTER USAGE
  • FILTER MOUNTING unmounted
  • FILTER TYPE f/3 Ultra-Highspeed
  • oNE OR SET? Filter-Set
  • FILTER SHAPE round

Set of 3 Baader Ultra-Highspeed 3.5 / 4nm f/3 filters in 31mm (unmounted) optimized for CMOS (H-alpha / O-III / S-II)

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