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NOTCam J filter

NOT filter number:201
Dimensions:25-mm round.
Status:mounted
Filter name:J
Marking on filter edge:
Cosmetic defects:


on: 1.165 micron
central:
off: 1.328 micron
FWHM: 0.163 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.
    • Back to top Last modified: June 28 2023