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Lenses and Filters


Preston Cinema Systems

Contact SMS for a customized quote on any of the products on this page.



Preston Cinema Systems Micro Force Zoom System

Micro Force Zoom SystemThe Micro Force Control pioneered the use of a solid state force sensor to provide the ultimate in smoothness, sensitivity and reliability. Now with even higher torque capability and variable electronic torque limiting feature.

Micro Force Zoom MotorThe Micro Force Zoom Motor is the perfect partner for the control unit. Quiet, powerful, and extremely reliable, this unit has virtually no backlash. The motor comes with the choice of eccenters and gears to fit either J4 or J5 bracketry.

Preston Cinema Systems Fi+Z Remote Lens Control System

Fi+Z Control
Fi+Z Control
The Fi+Z Control provides Iris, Focus, Zoom and Camera Run functions. Zoom commands are provided by a Micro Force V+F control. All data from the control are multiplexed and transmitted either over a single twisted pair of wires or via a Microwave Wireless Link (ML-1). The unit's high resolution (16 bit) results in incredible smoothness.

A unique scale adjustment system makes set-up extremely quick. Any portion of the scale for Focus, Iris or Zoom may be expanded to cover all or part of the full scale of the corresponding control knob. Normal range may be reset at the touch of a switch. A bright LED bar graph displays Zoom position and is readable under all lighting conditions.

An optional Remote Iris Box provides a separate control for the Iris function. It is automatically enabled when connected to the Fi+Z.

The Fi+Z also provides a universal interface to stop and start film cameras as well as VTR's. The Fi+Z control is powered either through its cable connection to the MDR-1 motor driver, or from the Microwave Transmitter (P/N 4902) when operated in the wireless mode.

Fi+Z with Microwave Link and Micro Force
Fi+Z with Microwave Link and Micro Force

4000 Fi+Z Control
4010 Micro Force V+F Control
4020 Remote Iris Control with 8' cable
4330 Bracket for MF Zoom
4440 Cable: Micro Force to Fi+Z 12" for bracket mount
4441 Cable: Micro Force to Fi+Z 8' for remote operation

DM-1 Digital Motor
DM-1 Digital Motor
The DM-1 Digital Motor combines high power output, ruggedness and high precision. Its right angle drive configuration allows for a simple lens interface. The worm gear set is tapped for very quiet, low backlash operation. Electronic feedback is provided by an optical encoder for maximum reliability. The output gear is .80m cinema standard. Step up gears for meshing with Panavision or Video lenses are also available.

The DM-1 motor may be used interchangeably as a zoom, focus, or iris drive. A 15mm mounting rod is fixed to the motor body. Swing arm adapters are available for 15mm, .625", and 19mm rod systems.

4200 DM-1 Digital Motor
with 15mm rod and .80m output gear .25" wide
4220 .80m output gear .25" wide - spare
4221 .80m output gear .50" wide
4230 32 pitch output gear PV Focus
4231 48 pitch output gear PV Zoom
4232 64 pitch output gear PV Iris
4240 .50m gear Canon Video
4241 .60m gear Fujinon Video

MDR-1 Motor Driver
MDR-1 Motor Driver
The MDR-1 Motor Driver interfaces the Fi+Z Control with the DM-1 Motors. It provides 3 channels of motor drive, the camera run function for all film cameras and the VTR function for video cameras. Switching electronics have been used for high power efficiency, and extensive filtering has been incorporated to ensure noise-free operation.

Automatic calibration to the mechanical end limits of the lenses is implemented in software. Each motor driver channel is torque limited electronically and fused. Motor stall protection is also provided.

Power requirements are 22-30 VDC at 0.15A quiescent and 3A peak (all three motors stalled). The Microwave receiver option (P/N 4901) incorporates an integral voltage converter which enables operation from 11-30 VDC.

4100 Motor Driver with 24V power cable to XLR 8'
4400 Main Command Cable 30'
4410 Motor Cable 24" straight LEMO connectors
4411 Motor Cable 24" R/A LEMO connectors
4420 Camera Cable Arri 11 pin Fischer
4421 Camera Cable Arri 535/SR3 3 pin Fischer
4422 Camera Cable Panavision
4423 Camera Cable Moviecam 2 pin Fischer

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Chicago, IL 60622
Phone: (312) 440-8963
Fax: (312) 440-8966

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