Moves both filter wheels in combination to select the desired filter. This is equivalent to entering /UFILTER=pos1/LFILTER=pos2, where ''pos1'' and ''pos2'' make up a sensible combination. The desired_filter may be specified by name, which is one of the following:
Blank, J, H, K,
KP, KN, L, M,
Helium (NB108), PGamma (NB109), PBeta (NB128), Cont1.6,
FeII (NB164), AAOFeII (NB165), H2O (NB199), H2_1_0 (NB212),
BrGamma (NB217), Cont2.2 (NB222), H2_2_1 (NB225), CO (NB236),
Ice (NB310), Dust3.28 (NB328), Dust3.4 (NB340), Cont3.6 (NB360),
Cont4.0 (NB400), BrAlpha (NB405), Grid, Focus
These names may be abbreviated. Alternative names for a position are
shown in parentheses. This qualifier cannot be specified with the /UFILTER
qualifier or the /LFILTER qualifier.