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NOTCam K filter

NOT filter number:208
Dimensions:25-mm round.
Filter name:K
Marking on filter edge:
Cosmetic defects:

on: 2.030 micron
off: 2.366 micron
FWHM: 0.336 micron

  • Transmission curves: gif image, ASCII data
    Note:These transmission data have been scanned from the manufacturer's hardcopy. They are probably good to a couple of %. Details of the scanning procedure are not known, but the scan was made at ambient temperature. A small shift to the blue will be effected at operating temperature.

  • Notes: Purchased as part of the Gemini NIR filter consortium.

  • About the K filter:
  • Back to top Last modified: June 28 2023