The Cine RT System

The Cine RT System is one of the most popular distance reference tools available to professional focus pullers, and the best ultrasonic cinema rangefinder & transmitter tracking system in its class.

Designed by camera assistants

Widely recognized for its operational flexibility and exceptional performance, the Cine RT satisfies a broad range of working methods on film and digital cameras.

Purpose built components

Our components are constructed from pro-grade materials and electronics rated to work within industrial operating temperature range - built to withstand a life on set.

Expansive toolset

The innovative distribution of ultrasonic transducers across the custom-built wireless component family enables an expansive toolset unique to the Cine RT.

LCS Integrations

Custom-designed and third-party serial protocol outputs deliver fast distance data to lens control systems by ARRI, Preston, c motion, Teradek, and Heden.

Greig Fraser operating on Dune (Warner Brothers) with focus by 1st AC Jake Marcuson, Photo:  Chiabella Jameschiabellajames.com“Dune Part One: The Photography”
Greig Fraser operating on Dune (Warner Brothers) with focus by 1st AC Jake Marcuson, Photo:  Chiabella Jameschiabellajames.com“Dune Part One: The Photography”

The System Package

The component family enables multiple working modes to display real-time subject measurements and facilitate the collection of focus marks. 

Ultrasonic Base Sensor

The lightweight, low-profile ULTRASONIC BASE SENSOR is the computational center of the Cine RT System and the only system component required on the camera, making it ideal for all camera builds.  

Handset Control Unit

The HANDSET CONTROL UNIT is both a remote command centre and a handheld tape measure. It contains a pressure-sensitive touchscreen to access system-wide operational settings and display multiple distance readout modes.

Multiple

Use multiple displays

High-Bright LED Display

The compact HIGH-BRIGHT LED DISPLAY receives data remotely from the BASE and relays distance information with ultra-bright LED numbers.

0
Use up to four bugs

Ultrasonic Bug Transmitter

The miniature ULTRASONIC BUG TRANSMITTER is milled from rugged ABS, weighs virtually nothing and can be easily hidden under most fabrics.

System Overview Video

Play Video

Build Your Cine RT

Add accessories and customize the system to your individual specifications and LCS.

1st AC Thijs van Geenhuizen collecting focus marks on Naar De Mann music video, Photo: David in den Bosch
1st AC Thijs van Geenhuizen collecting focus marks on Naar De Mann music video, Photo: David in den Bosch

LCS Integration

The Cine RT System’s utility goes even further by connecting to all popular lens control systems. Custom or native serial protocols deliver fast distance data to products by ARRI, c motion, Preston, Teradek and Heden. In 2022 Focusbug’s partnership with ARRI advanced the integration to include the Focusbug License for bi-directional operational compatibility with the Hi-5 focus handset.

The Focusbug Community

The Focusbug Cine RT System was introduced in 2017 and, with over 1800 units in the field, has become an industry standard. The system has been used on a wide range of productions, from music videos and documentaries to large-scale award-winning films like Dune, Napolean and OppenheimerWe thank our user base for their support and ongoing dialogue, which inspires us to continue to evolve the Cine RT to further complement the toolkit of any 1st AC. We are proud of our users and love to feature their posts and stories.

Tag or mention us on Instagram and join the Focusbug community!

Focusbug Socials

Today’s office 🏖️ - Arri Mini LF & Signature Primes - gear by fitussi_camera #arri #minilf #signatureprimes #focusbug #focusbug_technologies

Today’s office 🏖️ - Arri Mini LF & Signature Primes - gear by fitussi_camera #arri #minilf #signatureprimes #focusbug #focusbug_technologies ...

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Debut of my Focus Trolley on a 3 month job 😎

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J Cam spotted in Rome surrounded by an Ancient Rome Texture for this #sonyvenice2 and panavisionofficial Panaspeed, obviously covered by our cam ID tag!!!panalight panavisionofficial focusbug_technologies sonycine smallhd#1ac #2ac #assistancamera #camera
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J Cam spotted in Rome surrounded by an Ancient Rome Texture for this #sonyvenice2 and panavisionofficial Panaspeed, obviously covered by our cam ID tag!!!

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Trying out this reel thing... throwing it back to a mad shoot before Christmas. Fights. Neon. Motorcycles. Smashing beer bottles.... and pack shots. What could be better!
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It is too big. It had to be done. I had fun.
Meet T100 aka Arnie. Yes, 100 😬   ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
  ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀   ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀   ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀   ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀   ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
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Testing #CineRT #Focusbug integrity and reliability with #ArriHi5
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Up the Irons!!
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Up the Irons!!
dop: kasperwinddp

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