VariZoom VZTOC-FI2 User Manual
TOC FI2
Operations Manual
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General Description
The TOC FI2 is a two channel wireless Focus Iris control system.
The system can be used on most broadcast or cinema lenses. The TOC FI2
includes a hand held controller/transmitter, rechargeable battery (not
pictured), two lens drive motors, three channel capable receiver (for an
optional third motor),two universal gear sets, and battery charger.
Major Components
Hand Unit
Battery Charger
Motors
Gears
Receiver
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1. Setup
The TOC is provided with various gears to fit almost any broadcast or cinema lens.
Select the proper gear pitch for the proper lens ring. The gears can also be switched to
either side of the motors if needed.
Warning: If you are using the TOC with a servo powered lens, make absolutely sure
that the lens servo for the function you’re trying to control is always deactivated,
otherwise the lens servos can end up fighting the TOC motors resulting in severe
damage to either the lens or the TOC system. Please be aware that some “full auto”
modes may override the lens servo switches. Check with the lens or camera
manufacturer’s user manual to ensure that this won’t interfere.
POWERING THE RECEIVER: Only use a VariZoom-supplied cable to power the
TOC receiver. It is very important that you power the receiver with a maximum of
24VDC regulated (actual measured voltage – some nominal unregulated 24VDC
sources can actually go as high as 34VDC). The acceptable range for voltage is 1224 VDC – if you go higher, the unit will be damaged severely.
Before connecting power, mount the TOC motors onto 15mm or 19mm mattebox rods.
The motors can be mounted either vertically or horizontally.
Side view of
TOC
motors
mounted
vertically
Dovetail
clamp position
example 1
Dovetail
clamp position
example 2
Front view of
TOC motors
mounted
horizontally
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After the motors have been mounted on the rods, secure the gears against the proper lens
rings and tighten the dovetail clamps. Mount your TOC receiver and attach the antenna.
First plug the lens motors into TOC receiver according to their function (yellow to
yellow, focus to focus, etc)
Then plug power from camera into TOC receiver (red to red). Do not plug lens motors
into receiver while it is already powered up – this is called ‘hot swapping’ and it can lead
to minor malfunctions – always plug power into receiver LAST.
Now put the battery in the hand unit, attach the antenna and turn on the power by holding
down the power button for at least two seconds. All five LED lights on both the receiver
and the hand unit should now be solid orange.
LEDs: 1st LED = connection to
receiver; 2nd LED = hand unit
transmitting; 3rd 4th & 5th LEDs =
signal strength meter
1st & 2nd LED = connection to
hand unit; 3rd 4th & 5th LEDs =
signal strength meter
Assuming your lens has mechanical end stops (like most broadcast or cine lenses), the
TOC motors will calibrate most accurately in “Auto” mode. Note: If using a lens that
doesn’t have end stops (e.g., DSLR lenses), you must manually calibrate the lens
motors. This will be addressed in chapter 5. To execute auto calibration from the hand
unit, select “Calibrate” from the home menu, then select “All Motors”. (This will be
described in more detail in chapter 5) The motors will start moving automatically, and
will also automatically stop once resistance is met. Do not touch the lens motors
during calibration. Also note that the power required to move the lens rings properly
may vary depending on the lens used. The system defaults to 50% power and can be
adjusted. (see page 8 for more details). 50% may be too much for most lenses, and can
cause the lens motor to slip off the lens ring or skip gear teeth. Adjust power down if this
happens.
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