OVERVIEW Interfaces with motor drivers to control one motor (Focus or Iris) Perfect for breaking out Iris control for DPs The Focus/Iris (aka Single Channel) wireless hand control provides the reliability and robustness you expect from Preston in a compact, lightweight package. It can be used with the rest of the FI+Z system to take over the Iris or Focus function from the HU3, selectable with a toggle switch on the front panel of the unit.The F/I features a bright LED bargraph display of lens position. End limits can be set with the touch of a button and are shown as illuminated bars. A tri-color LED is used to indicate wireless signal strength, along with red LED indicators for wireless channel, battery voltage status, and camera run/stop.A soft urethane grip makes for comfortable all-day operation. Marking discs slide over the knob onto an index pin, so the user can know the current lens position without being near the camera. Power is provided by a standard FM-50 Li-Ion battery, allowing for approximately 8 hours of operation. This unit comes with: Blank marking ring 2x FM-50 Batteries FM-50 Battery Charger SPECS Channels Focus or Iris Dimensions 6.7in x 4.7in x 2.8in Display Wireless channel Frequency Band 2.4 GHz Input Voltage 7-9VDC (battery) Maximum Current Draw 0.09A (at 8V) Operating Temperature 0F to 122F Weight 24oz (680g) Wireless Channels 60 Wireless Range 300m (line of sight)