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.
OV.1 Video Overlay Unit Coming Soon to a Focus Monitor Near You
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.
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.
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
Build Your Cine RT
Add accessories and customize the system to your individual specifications and LCS.
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, Napoleon and Oppenheimer. We 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
ARRI ALEXA MINI + ANGENIEUX EZ ZOOMS
Fashion 👗 commercial produced by twentyfourseven, directed by chloevictoriahuges and shot by DOP chaimuki.
Studio setup and Easyrig setup with Fookus Pookus Powerbag for a lighter handheld operation. Multiple locations and a wonderful crew made the shoot seamless.
1st AC: 1flare
2nd AC: ferran_hernandez
DIT: ibon_esparza
Camera Rental: zigzagrental
ARRI ALEXA MINI + ANGENIEUX EZ ZOOMS
Fashion 👗 commercial produced by twentyfourseven, directed by chloevictoriahuges and shot by DOP chaimuki.
Studio setup and Easyrig setup with Fookus Pookus Powerbag for a lighter handheld operation. Multiple locations and a wonderful crew made the shoot seamless.
1st AC: 1flare
2nd AC: ferran_hernandez
DIT: ibon_esparza
Camera Rental: zigzagrental
...
ARRI ALEXA MINI (S16 MODE) + LOMO ILLUMINA MKIII + ZEISS VARIO SONNAR
Fashion 👕 commercial with kitten_production, directed and shot by ericglez.
Studio setup for fashion, controlling zoom and polarizer carefully. For the zoom shots while breathing, we always used a 19mm bar parasol to maintain precision and image quality.
1st AC: 1flare
2nd AC: carmen.dv
VTR: pau_boix
Camera Rental: zigzagrental
ARRI ALEXA MINI (S16 MODE) + LOMO ILLUMINA MKIII + ZEISS VARIO SONNAR
Fashion 👕 commercial with kitten_production, directed and shot by ericglez.
Studio setup for fashion, controlling zoom and polarizer carefully. For the zoom shots while breathing, we always used a 19mm bar parasol to maintain precision and image quality.
1st AC: 1flare
2nd AC: carmen.dv
VTR: pau_boix
Camera Rental: zigzagrental
...
ARRI ALEXA 35 + COOKE S4 SET + COOKE VAROTAL 25–250MM
🥛 commercial, directed and shot by aarondormer, produced by New Moon.
Super-light handheld setup with the Fookus Pookus gear pack for close-ups and portraits with movement, using lightweight handhelds so the camera barely felt any weight. Studio setup was used for precise zooms, allowing quick switches between modes to capture every detail of the product and talent performance.
1st AC: 1flare
2nd AC: ferran_hernandez
VTR: vins.tm
Camera Rental: zigzagrental
ARRI ALEXA 35 + COOKE S4 SET + COOKE VAROTAL 25–250MM
🥛 commercial, directed and shot by aarondormer, produced by New Moon.
Super-light handheld setup with the Fookus Pookus gear pack for close-ups and portraits with movement, using lightweight handhelds so the camera barely felt any weight. Studio setup was used for precise zooms, allowing quick switches between modes to capture every detail of the product and talent performance.
1st AC: 1flare
2nd AC: ferran_hernandez
VTR: vins.tm
Camera Rental: zigzagrental
...
ARRI ALEXA MINI LF + ANGENIEUX OPTIMO COMPACT + SONY FX3
BMW 🚗 commercial, directed by federicomazzarisi and DOP tomasoterigi, produced by jajafilm.
Car shoot with the Service Vision camera car. We used the Mini LF with Angenieux Optimo Compact for motion shots and a Sony FX3 for timed stills and VFX background captures, combining precision with dynamic car sequences.
1st AC: 1flare
2nd AC: ferran_hernandez
VTR: xavigargon
DIT: christianpoveda
Camera Rental: servicevision
ARRI ALEXA MINI LF + ANGENIEUX OPTIMO COMPACT + SONY FX3
BMW 🚗 commercial, directed by federicomazzarisi and DOP tomasoterigi, produced by jajafilm.
Car shoot with the Service Vision camera car. We used the Mini LF with Angenieux Optimo Compact for motion shots and a Sony FX3 for timed stills and VFX background captures, combining precision with dynamic car sequences.
1st AC: 1flare
2nd AC: ferran_hernandez
VTR: xavigargon
DIT: christianpoveda
Camera Rental: servicevision
...
ARRI ALEXA MINI + LEICA SUMILUX
Revolut 💳 commercial, directed by albert.capo and DOP alex_pizzigallo, produced by play_your_brand.
Studio setup on set for the campaign featuring Ibai Lanos. We also had Steadycam with santos.funnyshadows to cover smooth, dynamic movements. Over the course of the project, we shot 9 films, each with precise setups to match the brand’s visual style.
1st AC: 1flare
2nd AC: ferran_hernandez
Steadycam: santos.funnyshadows
Camera Rental: servicevision
ARRI ALEXA MINI + LEICA SUMILUX
Revolut 💳 commercial, directed by albert.capo and DOP alex_pizzigallo, produced by play_your_brand.
Studio setup on set for the campaign featuring Ibai Lanos. We also had Steadycam with santos.funnyshadows to cover smooth, dynamic movements. Over the course of the project, we shot 9 films, each with precise setups to match the brand’s visual style.
1st AC: 1flare
2nd AC: ferran_hernandez
Steadycam: santos.funnyshadows
Camera Rental: servicevision
...
ARRI ALEXA 35 + MASTER PRIMES + ANGENIEUX EZ
Commercial for Louis Vuitton 👗, capturing the start of the fashion show at Park Güell, Barcelona. DOP nauzetgaspar led the shoot with two Alexa 35 bodies, mixing Master Primes and Angenieux EZ lenses for full coverage. We worked with multiple studio and handheld setups, with nikolasarte on Steadycam for dynamic movement shots.
1st AC A Cam: 1flare
1st AC B Cam: sergilafuente
2nd AC A Cam: ferran_hernandez
2nd AC B Cam: carmen.dv
Steadycam Operator: nikolasarte
Production: kitten
Production Team: rolandparrot, tarifa.film, debora.zhang, martagonzalezsilla
Camera Rental: zigzagrental
ARRI ALEXA 35 + MASTER PRIMES + ANGENIEUX EZ
Commercial for Louis Vuitton 👗, capturing the start of the fashion show at Park Güell, Barcelona. DOP nauzetgaspar led the shoot with two Alexa 35 bodies, mixing Master Primes and Angenieux EZ lenses for full coverage. We worked with multiple studio and handheld setups, with nikolasarte on Steadycam for dynamic movement shots.
1st AC A Cam: 1flare
1st AC B Cam: sergilafuente
2nd AC A Cam: ferran_hernandez
2nd AC B Cam: carmen.dv
Steadycam Operator: nikolasarte
Production: kitten
Production Team: rolandparrot, tarifa.film, debora.zhang, martagonzalezsilla
Camera Rental: zigzagrental
...
ARRI ALEXA MINI LF + CANON K35
Volkswagen 🚗 commercial, directed by mardelcorral and DOP alberto___leon, production by caminofilms.tv.
We used handheld, studio rigs, Steadycam, and car grip setups to capture every angle of the car and the action. Multiple setups allowed us to quickly switch between dynamic driving shots, close-ups of interior and exterior features, and cinematic perspectives that followed the director’s vision.
1st AC: 1flare
2nd AC: ferran_hernandez
VTR: joanbruses
DIT: pablodval
Camera Rental: napalmrentals
ARRI ALEXA MINI LF + CANON K35
Volkswagen 🚗 commercial, directed by mardelcorral and DOP alberto___leon, production by caminofilms.tv.
We used handheld, studio rigs, Steadycam, and car grip setups to capture every angle of the car and the action. Multiple setups allowed us to quickly switch between dynamic driving shots, close-ups of interior and exterior features, and cinematic perspectives that followed the director’s vision.
1st AC: 1flare
2nd AC: ferran_hernandez
VTR: joanbruses
DIT: pablodval
Camera Rental: napalmrentals
...
ARRI ALEXA MINI LF + BLACKWING TRIBE 7 SET
Lottery 💸 commercial produced by smile_______tv, directed by martinromanella and shot by DOP hugo.prats.
Studio setups across multiple locations to capture a series of comedic “what if you won the lottery” moments, with plenty of money-eyes energy 😵💸. Great, easygoing shoot with an amazing crew.
1st AC: 1flare
2nd AC: ferran_hernandez
VTR: joanbruses
DIT: pablodval
Camera Rental: zigzagrental
ARRI ALEXA MINI LF + BLACKWING TRIBE 7 SET
Lottery 💸 commercial produced by smile_______tv, directed by martinromanella and shot by DOP hugo.prats.
Studio setups across multiple locations to capture a series of comedic “what if you won the lottery” moments, with plenty of money-eyes energy 😵💸. Great, easygoing shoot with an amazing crew.
1st AC: 1flare
2nd AC: ferran_hernandez
VTR: joanbruses
DIT: pablodval
Camera Rental: zigzagrental
...



