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FI+Z - Three Channels - Remote Lens Control System

The FI+Z system controls the complete array of both lens and camera functions. It consists of the HU3 hand unit, a set of Digital Motors, a Micro Force zoom control, and optional controls including wireless Focus/Iris, and Zoom for splitting of functions from the main HU3 hand unit.

Hand Controls - One Channel

Micro Force Zoom Controls:

  • V + F3 for Analog motors
  • DMF2 for Digital Motors
  • Both work with HU3 Hand Unit

F / I Wireless Control for one channel Focus or Iris. Use as separate Facus / Iris control with HU3 Hand Unit.

Radio MF for one channel Zoom. Use as separate zoom control in conjunction with Hand Unit 3 and MDR-3.

Digital Motors
DM1X  |  DM2  |  DM4X


Simply replacing the hand wheels on a geared head transforms a standard camera unit into a sophisticated yet easy to use motion control system.

RevolveЯ gives the operator a wide range of gear ratios, from 99:1 down, to 1:30 up, in 0.1 steps, with soft and hard limits on pan and tilt. This is not just another mimic head. It provides true motion control capability, equalling and in some respects exceeding that of much larger and more expensive systems.

Motion control capabilities extend to eight axes of movement, with transparent interfacing to Preston lens systems.

Power supply 12V (max current 11A/handwheel)
System communications


Pocket PC to system - RS232
Camera to system - RS232
Inter axis - RS485 two wire diff bus
Automatic recognition of system config at startup
With axis numbers and names displayed on Pocket PC
Names can be configured
Recording to memory
Type: non-volatile eeprom, located in each axis
2 hrs @ 25fps
Recording features  

Number of Recordings

40, all name, scene, take, time and date tagged in axis memory

Max take length per recording

32000 frames

Recording speed

1 to 150fps, locked to camera frame pulse
Also can record ramping camera speeds

Sampling accuracy

Position stored within 0.5 msecs


Camera frame pulses can be simulated at any speed
from 1 - 150fps with 0.001 fps accuracy
Key frame programming On some or all axes. Can be tied in with previously recorded move
Up to 100 key frames with curve fitting algorithm
Playback features  

Playback dynamic positioning accuracy

frame to frame, measured at the hand-wheel,
with a fully loaded head, at maximum playback speed.
Equivalent to 0.075 degs. tilt axis, and 0.11 degs. pan axis.

Static accuracy

< 0.3 degrees at the hand-wheel.

Playback sync

Axes locked to camera Frame pulse. Frame positions retrieved
within 0.5 msecs. of start of frame pulse.

Playback Speed

Any speed, including faster or slower than the recording
(within the max speed constraint of the head servos),
with camera frame pulses from 1 to 150 fps, including all non-integer values.

Ramping camera speeds

from 1 to 150 fps, with the axes dynamically locking to the frame pulse.
Pre-programmed ramps or manual ramps using an ARRI RCU.
Playback Modes  
  Live Action, with 'multispeed' function.
Play back at a fraction of the incoming frame pulse speed,
or at a multiple of the frame pulse speed.
One to ten times slower or faster in integer multiples.
  Time-Lapse - with motion blur, and controlling an ARRI SFC,
or JWC DMS 120-S. Exposure range 1/8 th sec. to 15 secs.
Intervals range 1 sec. to 70 minutes.
  Stop Motion - as time-lapse
  Forward or Reverse Playback
  Partial Move Playback with preroll
  Play to frame
  Record axes whilst playing back other axes
Triggered Start record or Playback triggered by external input.
Starts on next frame pulse after trigger.
Gearing Electronic gearbox range 99.9 to 1 down, to 1 to 30.0 up,
in 0.1 increments. Simple setting via hand-wheel.
Limit Stops Hard end limits and soft limits, settable at any position,
with user settable feathering rate.
Head Brakes Mechanical head brakes can be used as normal.
System detects "brake-on" condition and prevents motor stalling.
User Interface Standard Pocket PC, running Pocket PC2002/2003.
Graphical User Interface.
Camera Control ARRI 435/535/16SR3 and JWC DMS 120S.
All camera functions, including reading and setting fps,
shutter angle, foot count etc.
Import/ Export Text format move data files from / to CGI etc.
Email moves via Pocket PC/ phone.
Head Compatibility ARRI head 1 and 2. An encoded head is NOT required.
The servo control is sufficiently accurate to give
precise move repeatability in all moco applications.
Lens Motor Compatibility Preston Microforce and FIZ units. Utilises existing Preston
hand controllers, including wireless control.
Field Upgradeable Both the servo axes and Pocket PC can be firmware
upgraded in the field, with simple and inexpensive programming tools.


The Scorpio Focus is a wireless lens control system. Its market consolidation and its constant update of functions makes it the most versatile, safest and complete, as well as the most universal for its adaptation to any kind of cameras and lenses.

Wireless digital lens control (Focus, Iris and Zoom) with information display (speed, total metres or feet counter, last take meters or feet counter, signal coverage indicator, low battery indicator, camera status ON/OFF and zoom position scales
15 Communication chanels between 2.4GHz and 2.5GHz. Half Duplex Microwave between the hand unit and the motor driver box.
1 Channel of communication by cable using RS485.
Input voltage in Motor Driver Box (MDB) from 11 to 30 V DC.
Standard 7.2 V NP-FM50 Sony batteries for hand unit.
The lens are automatically calibrated when connecting the power cable to the digital motor from the Motor Driver Box (MDB) as well as from the Hand Unit set menu.
The calibration remains saved on memory when disconnecting the equipment. This avoids any movement of the lens once the system is connected back, being very useful in situations like battery replacement.
External small zoom control can be connected to the Motor Driver Box (MDB) or to the Hand Unit for external zoom control.
Two Hand Units can be connected wireless in mode "Master-Slave" to separate the Focus, Iris and Zoom control.
Three power levels for the initial lens calibration and three levels for the motor movement, selectable for each motor through the settings menu (Low, Medium and High).
Possibility to set limits to Focus, Iris or Zoom movements.
Run camera control from the Hand Unit.
Brackets, gears, driver cables and power cables available for any camera and any lenses in the market.