In November 2000 the FLUOR team installed a series of narrow band
filters. The configurations of the filter wheel is now:
(starting from top position, turning clockwise)
K 239: 2.28 - 2.56 um
K 203: 1.96 - 2.20 um
K 215: 2.06 - 2.32 um
H : 1.50 - 1.80 um
K' : 1.95 - 2.50 um