PRESTON CINEMA SYSTEMS

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FI+Z 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.



The HU3 gives focus pullers not only a robust and reliable unit but one whose controls equip the focus puller to smoothly translate the changing actors' positions on set to a precise movement of the focus knob. It integrates its 30 channel 2.4GHz wireless link into a new splash-resistant housing. Weather sealed tactile switches are used throughout. The integrated microwave antenna is protected from impact. The iris slider uses a unique non contact technology to eliminate the opening required for a conventional sliding seal.

Generation 4 (G4) transceivers address the challenges brought about by the proliferation of wireless devices using the 2.4 GHz wireless band. Their new architecture results in a greatly improved ability to reject interference from other devices operating in the same band as well as out of band interference. The improvement in performance is quite significant, typically 10x or better interference rejection than previous transceivers. In addition, their lower power consumption doubles the operating time of the HU3 on battery power compared to its predecessor. The latest "Blue Dot" version of the transceiver adds channels 30 – 59. These new channels allow FI+Z units to operate in very close proximity (<1m) without interference.

New software called "Lens Mapping" matches the focus distances of a lens to a set of five pre-printed Focus Marking Rings. These rings differ in their minimum focus distance from 9" (.35m) to 6' (2m). The on-board lens library holds data for 255 lenses: lens changes require only the few seconds to choose the lens from the library. Lens calibration is fast and doesn’t require connection to an external computer. The primary references for the focus puller are the distance marks on the focus rings. The set of focus rings have large, easy to read, distance marks printed on a bright fluorescent background for excellent visibility under all lighting conditions. The rings are automatically illuminated in low light conditions by a pair of white LED's.

Lens mapping also supports the upcoming Light Ranger 2, a powerful tool which enables both precise focusing in both manual as well as autofocusing modes.

A bright OLED display shows camera, lens, and Hand Unit set-up status. Focus settings can be displayed digitally for Cooke i-Lenses, or any lens which has been calibrated to the unit. Multiple focus marks can be displayed in a new focus display mode called "show". This mode gives an easy to interpret bargraph representation the distance set by the focus knob and any focus marks entered by the user.

An integrated hand grip and molded focus knob grip imparts comfortable operation. The zoom bargraph shows both the zoom lens position as well as user set end limits. End limits are set with Set/ Reset tactile switches arranged in three groups. An LED in each group indicates when limits have been set.

Power is provided by widely available FM-500H Li-Ion batteries.

The Motor Driver MDR3 accepts commands from the Hand Units connected via the wireless microwave link or cable, and controls up to four digital motors as well as camera functions for both film and video cameras.


Three sizes of digital motors meet the needs for virtually any lens drive application. The DM1X Digital Motor (left) has the highest speed and power of any available lens motor. It is specifically intended to focus cinema lenses, allowing for quick focus racks on even the largest zoom lenses.

The DM2 motor (middle) is general purpose motor, intended to perform the Focus, Iris or Zoom functions on all but the stiffest cinema lenses. (These jobs should be relegated to the DM1X.)

The DM4X motor (right) is the smallest member of the family. It’s recommended for either light-weight video lenses or the zoom / iris rings of small zoom or prime lenses.


The DM1X and DM2 motors are both available with an integral bracket (the “A” version), while the DM4X comes with the integrated bracket only. The integrated bracket provides for simplified mounting and also allows the motors to be positioned very close to one another. A rosette gear securely locks the swing arm in position. The swing arms clamp to 19mm rods. Step-down bushings accommodate 15mm and 0.635” rods, p/n 4320 and p/n 4321 respectively.

DM1X and DM2 Digital motors can be mounted to matte box support rods with either the integral motor mounts as described above or with separate swing-arm brackets. All of the brackets have one 15mm opening for the motor rod and one 19mm opening for a matte box rod. Additional step-down bushings are required for 0.625” Panavision rods and 15mm rods.

Swing-arm Brackets are provided in two groups: short brackets for the Panavision vertical rod configuration and long brackets for Arriflex style horizontal rod configurations

Motor Cables are available with both straight and right angle LEMO configurations. The right angle configuration is used when minimum cable outline is most important - for example in Steadicam applications.

Camera Cables allow the Motor Driver to control both the start/stop, speed, and shutter angle function for film cameras and the VTR function for digital cameras.

Additional hand units allow camera and lens control functions to be split off from the main hand unit. Using these tools, each crew member can position him/herself wherever it is most advantageous. The Focus/Iris unit takes over the iris or focus function (switch selected). The Radio Micro Force module together with a Micro Force control splits off the zoom function.


Typical 3 Motor System

HU3 4060-G4 Digital motor DM1XA 4205A
Digital Micro Force 1210 Digital Motors DM2A 4201A
Bracket: DMF-HU3 4336 Motor Driver MDR2 4102
Cable DMF-HU3 4445 Motor Driver MDR3
Motor Cables (3x)
4410
4412

Please note: cables are required to connect the MDR3 to the three digital motors as well as the camera. Please refer to the current price listing of cables, motor brackets, motor gears, and spares.

Hand Controls, Motor Driver, and Motors

4060-G4 Hand Unit HU3
1110 Micro Force V+F3 (control for driving analog motors+ video lenses) or
1210 Micro Force Digital2 (control for driving digital motors+ video lenses)
4015 Radio Micro Force module (used in conjunction with either p/n 1110 or 1210 )
4024 Focus/iris Hand Unit
4110 MDR3 Motor Drive and 2.4GHz Microwave Transceiver
4205A DM-1X Digital Motor (with integral bracket)
4201A DM-2 Digital Motor (with integral bracket)
4207 DM4X Digital Motor with integral bracket.

Motor Brackets clamp to 19mm matte box support rods. Step-down bushings are used with 15mm Arri and 0.625" Panavision rods.

4301 Arri swing-arm motor bracket
4302 Arri/Panavision short motor bracket
4333 Arri/Moviecam motor bracket
4320 Motor Bracket bushing 19/15mm (Arri)
4321 Motor Bracket bushing 19mm/.625” (Panavision)