Introduce any one of eight 25.4 mm filters or transmissive windows in series within an optical path. Applications include photography, fluorescence microscopy, and photometry. The 104 mm filter wheels are easily interchangeable and can accommodate filter/window thickness from 1 to 8 millimeters. The clear aperture diameter is 23 mm. The aperture may be rotated continuously through 360 degrees about the motor axis in order to provide the user maximum flexibility in a given optical setup. The unit may be controlled locally by means of two pushbuttons (CW, CCW) or remotely by means of the units USB 2.0 interface. The current position of the wheel is indicated by a seven segment LED display. Windows compatible application software is provided that allows the user to determine the selection of any filter and also program a filter sequence to be followed with selectable dwell times. The unit has numerous provisions for mounting. It may be mounted to a standard optical bench with the base provided or it may be post-mounted using a number of standard threaded posts (8-32, M-3, 1/4-20 or M6). Operating power is supplied by a wall mount supply that automatically accommodates line voltages of 95 to 260 VAC, 50-60 Hz. Four mains adaptors are supplied to accommodate North American, Continental Europe, British and Australian standards.
