Preston Cinema Systems FI+Z Manuale utente

F I + Z Lens Control

Rev 5.2

Preston Cinema Systems

1659 Eleventh Street

Santa Monica, CA 90404

Table of Contents

I. Introduction p-3

A. System

B. Hand Unit 3

C. Micro Force Zoom

D. Remote Iris Box

E. Optional Wireless Units

F. MDR3

G. DM-1X, DM-2, DM4 motors

H. DXL Module

II. FI+Z Basic Operation Summary p-4

A. Motor Driver and Digital Motor set-up

B. Hand Unit 3

III. Hand Unit Detailed Description p-8

A. Hand Grip p-8

1. Configurations

2. Changing the hand grip

B. HU3 Set-Up and Operation p-9

1. Main Display p-9

2. Menu Screen

3. Radio Channel Selection

4. Lens Set-Up p-9

5. Operating Mode p-12

6. System Menu p-13

7. Zoom Bargraph p-14

8. Lens Limits

9. Panatape and Cinetape. p-15

11. Light Ranger 2 p-15

10. Software Updates p-16

13. Remote Iris Unit

14. Focus Ring Light/Dimming

IV. MDR3 Detailed Description p-17

V. Digital Motors p-20

A. Digital Motor Brackets p-21

VI. MDR3 Brackets

VII. Battery Packs and Charger p-22

VIII. Technical Information p-23

A. FCC Statement

B. Connector Pin-Outs p-24

1. Hand Unit

2. MDR3

C. MDR3 Camera Cable list p-24

D. Transmitter Channels and Frequencies p-25

I. Introduction

A. System. The FI+Z system controls the complete array of lens and camera functions.

It consists of the Hand Unit HU3, one or more Motor Drivers, a set of Digital Motors, a

Micro Force zoom control, and a variety of optional controls including wireless Focus/Iris,

Zoom, and the Light Ranger 2 focus assist.

B. The HU3 gives focus pullers not only a robust and reliable unit but one whose

ergonomics allow the focus puller to accurately translate the changes in actors’positions

on set to a precise movement of the focus knob.

Careful attention has been paid to protecting the unit from impact and environmental

damage. The microwave antenna is integrated within a form fitting cover. The iris slider

uses a magnetic sensor to eliminate the opening required for a conventional sliding seal.

The soft urethane handgrip and focus knob cover not only provide for comfortable all day

operation, but also protect the unit from shock.

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.

The HU3 and MDR3 can also be connected through a cable link using the command cable.

This provides high reliability communication over long distances (1km).

To address the metadata requirements of CGI, the MDR3 has motor position and camera

data available at the serial port for incorporation into a metadata stream.

Lens Mapping software matches the focus distance marks of a lens to the pre-printed

focus marking rings. Five focus rings, labeled A –E, cover focus distances from 9" (.35m)

to 6' (2m). 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.

Once a lens is calibrated, it can immediately be used with any of the focus rings. The on-

board lens library holds data for 255 lenses. Calibration for a lens change only requires

the few seconds needed to choose the lens from the library.

A bright, sharp, OLED display shows camera, lens, and hand unit set-up status. Focus

distance settings can be displayed digitally for Cooke i-Lenses, or any lens which has been

calibrated to the unit. Data from compatible ultrasonic measuring devices (Panatape,

Cinetape) can be displayed.

The bright zoom bargraph display 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 are active.

C. The zoom function is implemented by a Micro Force control. It can be directly

connected to the Hand Unit using a bracket or operated remotely using a cable. The

camera may be started either from the Micro Force or from the Hand Unit.

D. The Remote Iris Box provides a separate control for the Iris function. It is automatically

enabled when plugged into the Iris accessory connector on the Hand Unit.

E. Optional wireless units allow various lens and camera control functions to be split off

from the Hand Unit functions. The Focus-Iris unit is a single channel hand control. When

active, it takes over either the focus or iris function from the Hand Unit. The Radio Micro

Force module allows the zoom function to be split off from the Hand Unit. The Light Ranger

2 is a high-precision focus assist which generates a graphics overlay indicating the

direction and amount the focus knob must be turned to bring a subject into focus.

F. The Motor Driver (MDR3) supports 4 motor channels and camera run/stop. The 30

channel transceiver allows the simultaneous operation of both the Hand Unit 3 as well as

the optional wireless hand units listed previously. An integral voltage booster allows for

operation over a voltage range of 11 –28 VDC. Switches are provided for adjusting Motor

Torque and reversing direction.

G. DM1X, DM2, and DM5 digital motors cover drive requirements from the largest zoom

lenses to small prime lenses. They have proven their toughness under extremes of

temperature, humidity and vibration. All of them use hardened metal gears with super-hard

coatings to give very low backlash over thousands of hours of operation.

H. The DXL Module is a wireless 3-channel motor driver for the Panavision DXL camera.

II. FI+Z Basic Operation Summary.

A. Set-up the Motor driver (MDR3) and Digital Motors.

a. Slide the motor brackets onto the matte box support rods. Position the motors and

brackets so that the motor gears mesh with the corresponding lens gears. Couple

the lens motors to the lens gears. Adjust the motor positions relative to the lens to

have minimum backlash and tighten the handles of the motor brackets. Do not

couple the motor to the lens too tightly or binding will result. Check that the motor

brackets do not flex or slip on the matte box support rods. For normal lenses, the

Torque adjustment switches can be set in the middle position of their range.

Connect the motor cables from the motors to the MDR3.

b. Use the designated camera cable to connect the MDR3 to the camera accessory

receptacle. (See pages 24, 25 for the cable list). Connect the power cable from the

MDR3 to the camera or battery power receptacle. Important: check that camera is

capable of supplying sufficient current for the MDR3. This information is usually

provided the camera manufacturer in their specifications. A conservative estimate of

the maximum MDR3 current requirement is 1A per motor at 24VDC or 2A/motor at

12VDC.

c. Apply power to the MDR3. Press the reset button. The motors will calibrate

themselves to the mechanical span of the lens rings.

d. Select the MDR wireless channel with the channel selection switches either on the

top cover or the side channel display.

B. HU3 Set-up

a. Install the FM500 battery.

b. Press the Power Switch momentarily. The main display screen will appear.

Main

Display Screen

Lens Selection

Shows focus distance

in digital format

(Lens must be calibrated)

All functions are accessed through

the Menu key

Focus Ring Letter

Host MDR

Radio Channel

Signal Strength bars

Battery Charge

To turn off the power to the unit, press the Power Switch for 3 seconds.

c. If MDR3 appears in the upper right corner of the display, the HU3 and MDR3 are

both set to the same wireless channel. If the wireless channels of the HU3 and MDR3

do not match, the message No Host! will appear in the upper left corner of the

display.

d. Match the HU3 wireless channel to the MDR3:

·Press the Menu soft key. “Channel”will be highlighted. Use the Nav key to move

the selection to the right. Change the channel number with the Nav key to match

the setting of the MDR3.

·The Signal Strength bars will appear. To return to the main menu, press the Nav

key left.

e. To use a blank focus marking ring, turn off the Focus mapping:

§Press the Menu key.

§Select Lens.

§If the focal length and serial number of a lens appears to the right of “Lens”,

press Fmap OFF.

§The HU3 is now ready for basic operation. The blank focus marking ring,

and iris marking strip can be used to manually mark lens calibrations.

f. Focus mapping eliminates the need to manually mark separate rings for each lens.

Data from the lens library is matched to pre-printed focus marking rings. This

makes process of lens changing quick and efficient. A detailed description of this

function showing the display screens is given in section III. To load focus data for a

lens and select a focus ring:

·Press the Menu key.

·Use the Nav key to select Lens.

Menu Screen: Channel Selection

·Press Choose.

·Select the lens location (All lenses, My List A…..)

·Select the lens and press OK or the Enter key (the center of the Nav key).

·Set the lens to infinity (as directed) and Enter/Next.

·Press Ring and choose a focus ring with the desired near focus.

·Install the same focus ring on the focus knob.

Hand Unit 3 Functions

Microwave Antenna Cover Ambient Light Sensor

OLED Display

Pre-printed Focus

Marking Ring

Focus Knob with soft

Urethane Knob Grip

White LED’s (2) for

focus marking

ring. Brightness

adjusted with the

NAV key.

Molded Hand Grip

Zoom Bargraph

Iris Slider

senses through

housing wall.

Splash Resistant

Housing

Hand Unit Power

Camera R/S with LED 4-way Navigation “Nav”Key

& Enter key (in center).

3 x Soft Keys

Neck Strap

Attachment point

Set/Reset switches

for Focus, Iris and

Zoom

LEMO receptacle for

Remote Iris

Battery

Release

III. Hand Unit 3. Detailed Description

A. Grip Configurations.

1. The Hand Unit can be set-up with a molded Hand Grip for Focus and Iris control or with

the Hand Grip replaced by a flat cover to accommodate a bracket and Micro Force zoom

control.

2. Removing the Hand Grip. The Handgrip is removed to allow the bracket for the Micro

Force to be installed.

·Press the Grip Release toward the HU3 housing (1).

·Slide the Grip downward (2)

·Replace the Grip with the cover (3).

·Install the Micro Force bracket using the threaded hole at the rear of the

HU3.

HU3 with Hand Grip

and Quick Release Plate

HU3 with Micro Force

and bracket 4336

(1)

(2) (3)

B. Set-Up and Operation

1. Main Display Screen. Press the Power Switch momentarily. The OLED display will

show the Main Display Screen :

2. Menu Screen Options. Press the MENU soft-key; the MENU screen appears.

3. Select a radio Channel to match that of the Motor Driver:

Press the right side of the NAV key to highlight the Channel number. Change to the

desired channel by pressing the top and bottom pads of the Nav key. The antenna icon

and bars indicate the presence and signal strength of MDR2 units on that channel.

4. Selecting Lens with the Nav key (Fig. 6.1) allows lenses to be calibrated and their data

to be stored in the on-board library. The Focus Mapping software matches the witness

marks of calibrated lenses to the printed scales on the lens rings. The Ring key (Fig

6.1) is used to match the installed focus ring letter (A –E).

Main Display Screen

Menu Screen: Channel

Selection

Lens Selection

Shows focus distance

in digital format

(Lens must be calibrated)

All functions are accessed through

the Menu key

Focus Ring Letter

Host MDR

Radio Channel

Signal Strength bars

Battery Charge

Fig 6.1

Fig 6.2

Fig 6.3

The Choose key (Fig. 6.1) brings up the list of folders containing lens data (Fig 6.2). The

All lenses

folder contains data on all of the lenses stored in the HU3 lens library. The

Library stores up to 255 lenses. Next brings up the contents of the selected folder (Fig

6.3).

The folders

My list A, B

, and

are used to store up to 15 lenses (3 screens) so that they

can be accessed quickly without having to scroll through the complete list. Pressing Add

allows a lens to be copied from the lens library to the

My list

folder (fig 6.4).

To use a lens from the library, choose a lens folder shown Fig 6.5. Using the Nav key

select the manufacturer (fig. 6.5, the lens type (fig. 6.6), and the lens (fig 6.7) and press

either OK or ENTER. Use the focus knob to set the lens to infinity as shown in Fig 6.8 and

press NEXT/ENTER. The lens name now appears on the main screen (Fig. 6.9).

To calibrate a new lens:

·Name the lens and store it in the lens library.

·Use the Edit function to calibrate the lens.

To name the lens, go to the Lens selection screen (FIG 6.2), select All lenses (Fig 6.2),

select a manufacturer’s folder (FIG 6.5), and Lens Type (FIG 6.6).

Press the New Lens key (Fig 6.7) and you will be asked to select the focal length (Fig 6.10),

and Serial Number (FIG 6.11). When finished, press Next and the lens name (18mm s/n

123) appears in the lens type folder (Fig 15). Note that the lenses are automatically sorted

in ascending values of the focal length.

Fig 6.4

Fig 6.5

Fig 6.6

Fig 6.7

Fig. 6.8

Fig. 6.9

Fig 6.10

Fig 6.11

Fig 6.12

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