NOTCam K' filter
|NOT filter number:||505|
|Marking on filter edge:|
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: This filter was designed with the passband
located a bit shortward of the standard K band in order to lower the
thermal component of the background. See: Wainscoat & Lennox (1992, AJ 103,
332) for reference. Its short cut-on wavelength was intended to take advantage
of the reduced water-vapour extinction above Mauna Kea (see: Handbook of IR
astronomy, Glass, 1999).