Baader H-alpha Ultra-Narrowband 3.5nm...
Baader H-alpha Ultra-Narrowband 3.5nm...
Baader H-alpha Ultra-Narrowband 3.5nm...
Baader H-alpha Ultra-Narrowband 3.5nm 3.5nm 31 mm CMOS-optimized filters
Baader H-alpha Ultra-Narrowband 3.5nm 3.5nm 31 mm CMOS-optimized filters
Baader H-alpha Ultra-Narrowband 3.5nm 3.5nm 31 mm CMOS-optimized filters

Baader H-alpha Ultra-Narrowband 3.5nm 3.5nm 31 mm CMOS-optimized filters

BAD2961326
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H-alpha ultra narrow band filters Baader Planetarium in 31 mm diameter and optimized to work with CMOS sensors

Buy it now and receive it between on Friday, 15 November and Friday, 22 November with Home delivery - International

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

Friday, 15 November - Friday, 22 November

Home delivery - International

Home delivery - International

Estimated delivery:
Friday, 15 November - Friday, 22 November

 

Ultra-Narrowband Baader H-alpha 3.5nm 31mm Ultra-Narrowband Filters optimized for CMOS

This new generation of Baader CMOS filters features:

  • CMOS-optimized Baader filters
  • Increased contrast
  • Increasingly narrower pass bands
  • Reflex-Blocker ™ coatings, for the greatest freedom from halos, even in the most adverse conditions related to auxiliary optics
  • FWHM in each filter category carefully designed to allow 1: 1: 1: 1 exposures, combined for typical CMOS quantum efficiency and s/w ratio
  • Filter thickness identical to existing standards, with extreme care for parafocality
  • Blackened edges all around, with filter lead-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 sealed coating edge (NOT cut from a larger plate with exposed coatings)
  • Life-Coat ™: increasingly harder coatings to allow for a coating that will not age for life, even in the harshest environment
Summary key features:
  • 31 mm x 2 mm Baader H-alpha ultra narrow band filters - Precision grade
  • 3.5 nm FWHM (to harmonize exposure time with O-III / S-II), recommended for extremely fast optical systems from f/10 to f/3.5
  • For the highest contrast even with the strongest light pollution, minimizes star size, emphasizes the finest nebula details, 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 lead side indicator in the form of a black outer edge on the front side
  • Optimized for modern CMOS cameras, but excellent for CCD camera technologies
MANUFACTURER Baader Planetarium
NET WEIGHT(KG) 0.06
COLOR Black
TRANSMISSION RANGEH-alpha
FILTER THICKNESS (WITHOUT CELL) 2 mm
HBW (HALF-BANDWIDTH) 3.5 nm
CWL (CENTER WAVELENGTH) 656.3 nm
AR-COATING Reflex-Blocker ™ hard-coated, planoptically polished
SPECIAL FEATURES CMOS optimized with Life-Coat ™
FILTER SIZE31 mm
FILTER USAGE CMOS, CCD, H-alpha
FILTER MOUNTED ON FILTER Unmounted
FILTER TYPEUltra-Narrowband
SINGLE OR JOINT? Single filter
FILTER SHAPE round

Ultra-Narrowband Baader H-alpha 3.5nm 31mm Ultra-Narrowband Filters optimized for CMOS


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