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.
The System Package
The component family enables multiple working modes to display real-time subject measurements and facilitate the collection of focus marks.Ā
1
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.
2
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.
3
OV1 Video Overlay Unit
The Focusbug OV1 is a compact inline video processing unit that inserts between the cameraās SDI feed and the focus monitor, outputting real-time Cine RT and LCS data via a real-time customizable overlay.
4
High-Bright LED Displayā
The compact HIGH-BRIGHT LED DISPLAY receives data remotely from the BASE and relays distance information with ultra-bright LED numbers.
5
Ultrasonic Bug Transmitter
The miniature ULTRASONIC BUG TRANSMITTER is milled from rugged ABS, weighs virtually nothing and can be easily hidden under most fabrics.
Start Building Your Cine RT
Explore the system overview and configure your system. Add accessories and customize the system to your individual specifications and LCS.
LCS Integration
The Cine RT Systemās 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 Focusbugās 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 + COOKE S4
āHola Wang Shuzhenā šØš³ commercial produced by grayskull for UnionPay, directed by s_hiha_o and shot by DOP son.of_zorn.
Multi-configuration setup combining handheld, Steadicam, and crane work, first time with the SetLink Nano giving us full camera control via iPad and helping us move smoothly between setups. A beautiful story that ended up going viral, backed by a fantastic camera team and a great crew. Even better to share the set with so many familiar faces I hadnāt seen in a long time, and made new friends from around the world!
A Cam 1st AC: henri_camm āØA Cam 2nd AC: sergiodaeirasantana āØB Cam Op: javisevazarco āØB Cam 1st AC: adria.alcalaāØB Cam 2nd AC: cescolive esteban_rod āØVTR: bertasilenceplease āØDIT: pablodval āØCamera Rental: zigzagrental
ARRI ALEXA MINI + COOKE S4
āHola Wang Shuzhenā šØš³ commercial produced by grayskull for UnionPay, directed by s_hiha_o and shot by DOP son.of_zorn.
Multi-configuration setup combining handheld, Steadicam, and crane work, first time with the SetLink Nano giving us full camera control via iPad and helping us move smoothly between setups. A beautiful story that ended up going viral, backed by a fantastic camera team and a great crew. Even better to share the set with so many familiar faces I hadnāt seen in a long time, and made new friends from around the world!
A Cam 1st AC: henri_camm āØA Cam 2nd AC: sergiodaeirasantana āØB Cam Op: javisevazarco āØB Cam 1st AC: adria.alcalaāØB Cam 2nd AC: cescolive esteban_rod āØVTR: bertasilenceplease āØDIT: pablodval āØCamera Rental: zigzagrental
ARRI ALEXA 35 + ANGENIEUX OPTIMO 25-250 STYLE 12X
Pull&Bear ššš¼ commercial produced by kitten_production , directed by the production team and shot by DOP fertaranco .
Studio-based shoot combining slider and tripod setups to work around choreography with the models, with the Optimo 25-250 giving us the flexibility to move quickly between wider and tighter framings. A precise and efficient setup that allowed us to keep up with the choreography while maintaining consistent framing throughout the different setups. Fully equipped with the camera bags from crdbagofficial, plus an interactive 3D setup available online on my website.
1st AC: adria.alcalaāØ2nd AC: ferran_hernandezāØCamera Rental: zigzagrental
ARRI ALEXA 35 + ANGENIEUX OPTIMO 25-250 STYLE 12X
Pull&Bear ššš¼ commercial produced by kitten_production , directed by the production team and shot by DOP fertaranco .
Studio-based shoot combining slider and tripod setups to work around choreography with the models, with the Optimo 25-250 giving us the flexibility to move quickly between wider and tighter framings. A precise and efficient setup that allowed us to keep up with the choreography while maintaining consistent framing throughout the different setups. Fully equipped with the camera bags from crdbagofficial, plus an interactive 3D setup available online on my website.
1st AC: adria.alcalaāØ2nd AC: ferran_hernandezāØCamera Rental: zigzagrental
SONY VENICE 1 + RIALTO + COOKE S4 + ULTRAPRIME 8R š¬šŖļø
Music video for loreenofficial , produced by blackdogfilms and caminofilms.tv , directed by neels.castillon and shot by DOP meyrand_dop .
A mix of tripod and extensive handheld work, combined with SFX including rain, dust, and wind throughout the shoot. Challenging locations in Gorafe pushed the camera team to stay flexible and adapt quickly between setups. Working with the Sony Venice 1 and Rialto gave us the flexibility to move through the different environments while keeping the setup as lightweight as possible. Great to have such a strong team behind the project, and to be fully equipped with the camera bags provided by crdbagofficial
1st AC: adria.alcalaāØ2nd AC: ferran_hernandez
Gaffer : pauramirez_gaffer āØCamera Service: servicevision_scorpio
SONY VENICE 1 + RIALTO + COOKE S4 + ULTRAPRIME 8R š¬šŖļø
Music video for loreenofficial , produced by blackdogfilms and caminofilms.tv , directed by neels.castillon and shot by DOP meyrand_dop .
A mix of tripod and extensive handheld work, combined with SFX including rain, dust, and wind throughout the shoot. Challenging locations in Gorafe pushed the camera team to stay flexible and adapt quickly between setups. Working with the Sony Venice 1 and Rialto gave us the flexibility to move through the different environments while keeping the setup as lightweight as possible. Great to have such a strong team behind the project, and to be fully equipped with the camera bags provided by crdbagofficial
1st AC: adria.alcalaāØ2nd AC: ferran_hernandez
Gaffer : pauramirez_gaffer āØCamera Service: servicevision_scorpio
ARRIFLEX 416 + BOLEX + ZEISS ULTRA 16šļøš¬
Vueling commercial produced by jakiens, directed by ikerlemos.oro and shot by DOP alberto___leon .
A multi-location shoot combining tripod, multicam, and handheld setups, working with the Arriflex 416 alongside the Bolex. Moving between different locations and configurations required a flexible workflow and good coordination throughout the day. A lovely crew and a really enjoyable team to work with from start to finish.
2nd AC & Loader: ferran_hernandez
VTR: bertasilenceplease
Gaffer: ferrangrau.gaffer
Camera Rental: napalmrentals
ARRIFLEX 416 + BOLEX + ZEISS ULTRA 16šļøš¬
Vueling commercial produced by jakiens, directed by ikerlemos.oro and shot by DOP alberto___leon .
A multi-location shoot combining tripod, multicam, and handheld setups, working with the Arriflex 416 alongside the Bolex. Moving between different locations and configurations required a flexible workflow and good coordination throughout the day. A lovely crew and a really enjoyable team to work with from start to finish.
2nd AC & Loader: ferran_hernandez
VTR: bertasilenceplease
Gaffer: ferrangrau.gaffer
Camera Rental: napalmrentals
ARRI ALEXA MINI LF + ATLAS ORION 2X šÆšļø
Sports House commercial produced by fonktown_ , directed by clovertom and shot by DOP rubenvanweelden_dop .
Studio-based shoot combining the Alexa Mini LF with Atlas Orion 2x anamorphic lenses and a slider setup for fast and precise camera movements. Working with VIP talent and action choreography required smooth coordination between camera and production, keeping every setup sharp and efficient. An amazing crew, great atmosphere, and a job well done from start to finish.
1st AC: adria.alcalaāØ2nd AC: ferran_hernandez
ARRI ALEXA MINI LF + ATLAS ORION 2X šÆšļø
Sports House commercial produced by fonktown_ , directed by clovertom and shot by DOP rubenvanweelden_dop .
Studio-based shoot combining the Alexa Mini LF with Atlas Orion 2x anamorphic lenses and a slider setup for fast and precise camera movements. Working with VIP talent and action choreography required smooth coordination between camera and production, keeping every setup sharp and efficient. An amazing crew, great atmosphere, and a job well done from start to finish.
1st AC: adria.alcalaāØ2nd AC: ferran_hernandez
ARRI ALEXA 35 + EZ-ANGENIEUX š¬ā”
š„ commercial produced by oxigeno____ , directed by adrianfernandez and shot by DOP olmosobrino .
Four-camera setup combining handheld, tripod & movi work, with a strong focus on coordination between the camera teams and VIP talent to prepare and cover every setup efficiently. With multiple cameras running simultaneously, communication and organization were key throughout the shoot. A big team effort to keep everything moving and make sure we got every shot.
1st AC A Cam: alfrito āØ2nd AC A Cam: sergiodaeirasantana āØ1st AC B Cam: toni_1stac āØ2nd AC B Cam: diegoaveigaāØ1st AC C Cam: adria.alcalaāØCam B Op: Christian BonetāØVTR: jc.artero & albert_menezo āØDIT: pablodval
Head of Production: xaviricka āØProduction Coordinator: berenguer āØCamera Rental: napalmrentals
ARRI ALEXA 35 + EZ-ANGENIEUX š¬ā”
š„ commercial produced by oxigeno____ , directed by adrianfernandez and shot by DOP olmosobrino .
Four-camera setup combining handheld, tripod & movi work, with a strong focus on coordination between the camera teams and VIP talent to prepare and cover every setup efficiently. With multiple cameras running simultaneously, communication and organization were key throughout the shoot. A big team effort to keep everything moving and make sure we got every shot.
1st AC A Cam: alfrito āØ2nd AC A Cam: sergiodaeirasantana āØ1st AC B Cam: toni_1stac āØ2nd AC B Cam: diegoaveigaāØ1st AC C Cam: adria.alcalaāØCam B Op: Christian BonetāØVTR: jc.artero & albert_menezo āØDIT: pablodval
Head of Production: xaviricka āØProduction Coordinator: berenguer āØCamera Rental: napalmrentals
ARRI ALEXA 35 + MASTER PRIMES š¬š„
Realme š± commercial produced by a_l_t_i_p_l_a, directed by davidtheanimator and shot by DOP miquelrubis.
Mixed setup combining handheld work with the Fookus Pookus backpack, allowing us to run the Master Primes handheld during the mountain sequences while keeping the setup as mobile as possible. We then switched to Steadicam for the church scenes, bringing more cinematic movement to the fictional part of the story. Shooting across challenging locations with fire, horses, and VFX work required constant coordination and precision, with an amazing camera and production team making every setup happen smoothly.
1st AC: adria.alcalaāØ2nd AC: ferran_hernandezāØVTR: vins.tmāØDIT: pablodvalāØSteadicam Op: ferranvargasāØCamera Rental: zigzagrental
ARRI ALEXA 35 + MASTER PRIMES š¬š„
Realme š± commercial produced by a_l_t_i_p_l_a, directed by davidtheanimator and shot by DOP miquelrubis.
Mixed setup combining handheld work with the Fookus Pookus backpack, allowing us to run the Master Primes handheld during the mountain sequences while keeping the setup as mobile as possible. We then switched to Steadicam for the church scenes, bringing more cinematic movement to the fictional part of the story. Shooting across challenging locations with fire, horses, and VFX work required constant coordination and precision, with an amazing camera and production team making every setup happen smoothly.
1st AC: adria.alcalaāØ2nd AC: ferran_hernandezāØVTR: vins.tmāØDIT: pablodvalāØSteadicam Op: ferranvargasāØCamera Rental: zigzagrental
ARRI ALEXA MINI LF + CANON FD
Drinkš„¤ commercial produced by grayskulltv , directed by estergmera and shot by DOP darioriveraa .
Lightweight handheld setup built around the fookuspookusgrip backpack, allowing maximum mobility throughout the shoot. Most of the project was captured handheld, with tabletop setups dedicated to product shots. A social unit that truly felt like a main unit thanks to the production team and the crew behind it.
1st AC: adria.alcala
2nd AC: ferran_hernandez
VTR: joanbruses
Camera Rental: zigzagrental
ARRI ALEXA MINI LF + CANON FD
Drinkš„¤ commercial produced by grayskulltv , directed by estergmera and shot by DOP darioriveraa .
Lightweight handheld setup built around the fookuspookusgrip backpack, allowing maximum mobility throughout the shoot. Most of the project was captured handheld, with tabletop setups dedicated to product shots. A social unit that truly felt like a main unit thanks to the production team and the crew behind it.
1st AC: adria.alcala
2nd AC: ferran_hernandez
VTR: joanbruses
Camera Rental: zigzagrental



