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.ย
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 cameraโs SDI feed and the focus monitor, outputting real-time Cine RT and LCS data via a real-time customizable overlay.
4
High-Bright LED Displayโ
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 Systemโs 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 Focusbugโs 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
The crew went to Mexico!! ๐ฒ๐ฝ We got the opportunity to shoot a commercial for a resort in Tulum earlier this year. The night we landed was the same night violence broke out following the death of a major cartel member. Our client was so kind! They let us stayed inside the resort to take shelter for the entirety of the shoot ๐ฅน Cheers to the unforgettable experience.
Production nativefour
Producer dancounihan
Director indigobates
DP christopherclark___
Photographer josiahwg
Gaffer wawasonico
Good vibes miguelgmo
Camera rentals camtec_official
2/22/2026
Handheld fight mode rig ready with the #alexa265 and the #ultrapanatar
The lightest we could get the rig to be versatile, fun and reactive.
focuspulleratwork
focusbug_technologies
Another day in the field with the best of the best in the camera department!
focuspulleratwork
panavisionofficial
focusbug_technologies
On set!
#filmmaking #filmcrew #cameradepartment #focuspuller #16mm
๐ฃ๐ฟ๐๐๐ฟ๐ป๐ด ๐ฟ๐๐ธ๐ฝ๐ฒ๐ด๐๐๐ฃ
Here youโre seeing our Purple Princess fresh on set of the Swiss Tatort Movie
Iโm honestly obsessed with this camera build
I could stare at this rig all day and never get tired of it๐ฅ๐ฃ
#camerabuild #assistantcamera #filmset #behindthescenes #behindthelens
2026 Highlights so far #focuspuller #focuspulleratwork #1stac
Another day at this massive shoot getting it done to almost the top of a hill through hard and unstable terrain with the help of a lot of people ๐...and back at the end of the day!
focuspulleratwork
focusbug_technologies
Thanks to 1st AC @wizard_of_buzz for sending in these images of his OV1 placement within his monitor setup! More presale OV1s are shipping out everyday and we are looking forward to seeing a variety of integration builds as the OV1 works with any monitor and any supported LCS. Thanks for taking the time to send these our way Aurel!
