CASPIR/APERTURE=position

Moves the aperture wheel  to the specified position. The position may be specified by a number in the range 1-16, or by name. The position names are:

      Blank,      FastClr,    SlowClr,
      Sslit1,     Sslit1.5,   Sslit2,     Sslit5,     Sslit10,
      Lslit1,     Lslit1.5,   Lslit2,     Lslit5,     Lslit10,
      Disk2,      Disk5,      Polar

These names may be abbreviated.