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Teradek TOF.1 Precision Infrared Laser Range Finder for Teradek RT

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  • Infrared Distance Measurement Tool
  • For Teradek RT MDR.X, CTRL.1 and CTRL.3
  • NATO Rail and 1/4"-20 Mounting Options
  • 100' Range, 60x per Second Refresh Rate

The Teradek TOF.1 Precision Infrared Laser Range Finder for Teradek RT can be mounted to your rig right next to the MDR.X unit. The quick release mount can be snugged down with four M3 screws to either a NATO rail or a 1/4"-20 thread mount. With Teradek TOF.1 Precision Infrared Laser Range Finder for Teradek RT a laser sight (removable) offers the benefit of a red visual target for your focus puller, calibrated to the centre of the TOF.1 field of view. The TOF.1 operates with its own power supplied through a single 4-pin motor cable, also included.

The TOF.1 plugs into the MDR.X unit using the included 4-pin motor cable, which enables it to transmit distance information measured with infrared LEDs from the camera to your CTRL.1 or CTRL.3 controller. Using a serial/AUX connection to a compatible SmallHD monitor using its Rangefinder Overlay feature, you can also view the distance information transmitted to the controller right on the display. The TOF.1 has a 3° detection radius measured at your range to the target, which means a target 16' away will have a detection diameter of 10". Range detection is easily calibrated using the MDR.X controller menu system. Other features include a smoothing algorithm to reduce jitter, a range up to 100', and a refresh rate of up to 60x per second.

The TOF.1 data is also compatible with SmallHD monitors with PageOS 4 software, allowing you to update your CTRL.1 or CTRL.3 with the RT overlay option to read the distance data right on your SmallHD monitor.


  • Teradek RT MDR.X receiver
  • Teradek RT CTRL.1 controller
  • Teradek RT CTRL.3 controller

Key Features

Powered by Teradek RT Wireless FIZ System

Control and power for TOF.1 are provided by MDR.X and require only a single control cable, the same as for Teradek RT Lens Motors. Access configuration tools within the MDR.X menu to accurately calibrate TOF.1. MDR.X radio control with CTRL.1 and CTRL.3 handheld wireless controllers will also communicate TOF.1 distance readouts.

Hyper-Accurate IR Sensor

LED infrared beams measure the distance of subjects within a 3° field of view of TOF.1 proximity sensor, at a direct line-of-sight range of up to 100'. The overall radius of the sensor's field of view will narrow or widen as a subject moves toward/away from the camera, allowing a long range of focal detection from macro close-ups to farther distances.

Responsive Autofocus

Autofocus can be enabled by programming any User Button on CTRL.1 or CTRL.3. Identify and set a focal point and the lens motor will adjust accordingly. TOF.1 refreshes a subject's distance measurement 60 times a second, with instantaneous adjustments to focal length by the lens motor, faster than the human eye can understand movement. A proprietary smoothing algorithm prevents excessive jitter within the lens motor, so back-and-forth adjustments are blended together with near imperceptibility.

Customizable SmallHD RT Overlays

SmallHD's powerful PageOS 4 software features lens data overlays that display critical follow-focus information. Connect any compatible SmallHD monitor with CTRL.1 or CTRL.3 and activate the RT Overlay option to view TOF.1's numerical distance readout on-screen. The rangefinder information can be adjusted in size and positioned to anywhere on the monitor's display, so Camera Assistants can compare lens position and adjust focus with their wireless controller accordingly. For a completely wireless workflow, pair SmallHD monitors with Teradek Bolt 4K wireless video receivers.

Small and Lightweight

Weighing only 4.5 oz and 2.3" square, you won't notice it's mounted to your camera.

Detachable Laser Sight

The included detachable laser sight can be mounted to the top of TOF.1 via clip-on NATO rail. The activated red laser beam is perfectly centered within TOF.1's field of view, which allows focus pullers to locate their exact focal point before hitting record.

In the Box
  • Teradek TOF.1 Precision Infrared Laser Range Finder for Teradek RT
  • 4-Pin to 4-Pin Teradek RT Motor Cable
  • Laser Sight
  • Limited 1-Year Warranty
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More Information
Product ConditonNew
Input Connector 1 x 4-Pin LEMO-Type
Power Input 9 to 20 VDC
Communication Method Infrared LED
Refresh Rate 60x per Second
Detection Angle
Mounting 1 x NATO Rail
1 x 1/4"-20 Thread
Dimensions 2.3 x 2.3 x 1.3" / 58 x 58 x 34 mm
Weight 4.5 oz / 125 g
WARNING: This product may expose you to chemicals which are known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.
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