Chroma H-beta 3nm Bandpass Filter - 50mm Square

Product Details

• Description
• Specifications
• Included Items
• Recommended Products
• Reviews

• This Chroma H-beta 3nm Bandpass Filter - 50mm Square:

  is useful for imaging nebulae and objects which are rich in ionized hydrogen. At the 486.1nm emission line, a narrow-band filter is required to separate H-beta from the nearby blue and green spectral lines. Though it is weaker than the H-alpha line, this is often used for visual detection as the longer red wavelength of H-alpha are difficult to detect by eye.

  Type AS filter.

  Optical Density Values:

  All transmission and blocking (OD) data are actual, measured spectra of representative production lots. Spectra varies slightly from lot to lot. Optical density values in excess of 6 may appear noisy because such evaluations push the resolution limit of low light level measurements.

   

  

• specifications

  FIlter Material	Glass
  Filter OD Size in Inches	50mm Square
  Filter Shape	Square
  Filter Type	H Beta
  Free Shipping	Yes
  Size	50mm

• included items

  • H-beta 3nm Bandpass Filter.
  • 50mm Square, unmounted.
  • Useful for imaging nebulae and objects which are rich in ionized hydrogen.
  • At the 486.1nm emission line.
  • Required to separate H-beta from the nearby blue and green spectral lines.
  • Weaker than the H-alpha line, this is often used for visual detection as the longer red wavelength of H-alpha are difficult to detect by eye.
  • Type AS filter.