Photometry Filter, R-Band Bessell, 628nm, FWHM 124nm

Chroma Technology Astronomy Filter

Manufacturer's part number :

R-Band Bessell

Manufacturer CHROMA TECHNOLOGY Fluorescence Filters

Chroma Technology

Description :

R-Band Bessell is a band pass filter for Photometry application with a central wavelength at 628nm, and a bandwidth of 124nm (FWHM).

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  • Quote and availability


  • Central wavelength: 628nm R-Band Bessell
  • Bandwidth (FWHM): 124nm
  • Dimensions: 27mm, 50mm diameter or 50x50mm square
  • Transmitted wavefront at 633nm (better than 0.25 waves/inch)
  • Parallelism <30 arcsec
  • Thickness: 4.9 +/-0.05mm, parfocal +/-0.2mm (filters start parfocal +/-0.1mm per recipe)
  • Filters are not mounted in rings except by special request.
  • Benefits

  • Durable, anti-reflective coatings on both exterior surfaces over applicable transmission range
Features Similar products
Filters Type Band pass filter  

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Central Wavelength Range 601nm-700nm  
R-Band BessellPhotometry Filter
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