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
Can’t wait for this release…. @28yearslatermovie shot by DP Anthony Dod Mantle is coming soon!Love this bts shot of one of their iPhone builds with the Cine RT doing its thing.
Director Danny Boyle said that even though the film is largely shot on iPhones, the movie is ambitiously still in full 2.76:1 widescreen–which is typically reserved for IMAX or Ultra Panavision 70mm.
Our best to 1st ACs David Churchyard spooky.focus and @benfoat for taking us along!

Can’t wait for this release…. @28yearslatermovie shot by DP Anthony Dod Mantle is coming soon!Love this bts shot of one of their iPhone builds with the Cine RT doing its thing.
Director Danny Boyle said that even though the film is largely shot on iPhones, the movie is ambitiously still in full 2.76:1 widescreen–which is typically reserved for IMAX or Ultra Panavision 70mm.
Our best to 1st ACs David Churchyard spooky.focus and @benfoat for taking us along!
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🎬 Protect your gear like a pro!
Our FOCUSBUG CINE RT Handset Protective Case is built for durability, style, and on-set reliability.
✨ Designed with filmmakers in mind — because your tools deserve the best.
🔗 Shop now: etsy.com/shop/filmandfocusco
#Focusbug #CineGear #FilmTools #CameraRig #SetLife #OnSetEssentials #FilmmakerGear #BehindTheScenes #FocusPuller #DPgear #CameraDepartment #FilmCrewLife #EtsyFinds #GearUp #FilmmakersOfInstagram

🎬 Protect your gear like a pro!
Our FOCUSBUG CINE RT Handset Protective Case is built for durability, style, and on-set reliability.
✨ Designed with filmmakers in mind — because your tools deserve the best.
🔗 Shop now: etsy.com/shop/filmandfocusco
#Focusbug #CineGear #FilmTools #CameraRig #SetLife #OnSetEssentials #FilmmakerGear #BehindTheScenes #FocusPuller #DPgear #CameraDepartment #FilmCrewLife #EtsyFinds #GearUp #FilmmakersOfInstagram
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Continuing the recap of the second half of the year — this time, a two-day project: one day in the studio and another at the beach. Cool set-up with a cool crew.
Camera set-up ready for Studio and habdheld Mode😎🏝️📹.
🎥 Arri Alexa S35+ Cooke S4i+ Angenieux Optimo 20,5-98 + Arri Hi-5 + Teradek Bolt 6 + Cine RT Focusbug + O’connor 2575D + SmallHD Cine 503 Ultrabright.
Production Company: yours.production
Director: @
Cinematographer: lucascasanovass
1st AC A Camera: 👋🏼 ivi_koyck
2nd AC: albapedreira
Rental: napalmrentals
📸 by albapedreira ivikoyck ivi_koyck

Continuing the recap of the second half of the year — this time, a two-day project: one day in the studio and another at the beach. Cool set-up with a cool crew.
Camera set-up ready for Studio and habdheld Mode😎🏝️📹.
🎥 Arri Alexa S35+ Cooke S4i+ Angenieux Optimo 20,5-98 + Arri Hi-5 + Teradek Bolt 6 + Cine RT Focusbug + O’connor 2575D + SmallHD Cine 503 Ultrabright.
Production Company: yours.production
Director: @
Cinematographer: lucascasanovass
1st AC A Camera: 👋🏼 ivi_koyck
2nd AC: albapedreira
Rental: napalmrentals
📸 by albapedreira ivikoyck ivi_koyck
...
Así de increíble se veía este Set-up de ARRI Alexa Mini LF con nuestras preciadas Canon FD de TLS rodando en Barcelona.
En las buenas manos de un equipazo.
DOP: raultenreiro
1AC: 1flare
2AC: ferran_hernandez
Steady: steadymitx
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#camara #arri #arrialexa #arrialexamini #canon #canonfd #camarasetup #camerasetup #film #btsfilming #filimingsetup #cinemacamera #arricamera

Así de increíble se veía este Set-up de ARRI Alexa Mini LF con nuestras preciadas Canon FD de TLS rodando en Barcelona.
En las buenas manos de un equipazo.
DOP: raultenreiro
1AC: 1flare
2AC: ferran_hernandez
Steady: steadymitx
-
-
-
-
#camara #arri #arrialexa #arrialexamini #canon #canonfd #camarasetup #camerasetup #film #btsfilming #filimingsetup #cinemacamera #arricamera
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Here’s my #focus #station setup. This setup stays fully built on my cart, even between location moves and on its days off. It’s built for speed, reliability, and versatility.
Any questions or suggestions? Drop them below! 👇
**Setup includes:**
smallhd 1303 — The perfect size for focus pulling 🖥️
teradek RT CTRL.5 — Reliable focus control and On-Screen overlay 🔪
focusbug_technologies CineRT Handset — easy CineRT control
teradek Bolt 6 LT Max — Wireless video transmission, seamless workflow.
And my good old atomos.global Samurai Blade for checking sharps and continuity.
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Stand in, op, crafty: belen_mmt_
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#cameraassistant #1stac #focuspulleratwork #filmgear #cameradept #cinetech #filmmaking #filmset #setlife🎥 #smallhd #teradek #focusbug_technologies #atomos #filmlife #cinematography #behindthescenes #camerawork

Here’s my #focus #station setup. This setup stays fully built on my cart, even between location moves and on its days off. It’s built for speed, reliability, and versatility.
Any questions or suggestions? Drop them below! 👇
**Setup includes:**
smallhd 1303 — The perfect size for focus pulling 🖥️
teradek RT CTRL.5 — Reliable focus control and On-Screen overlay 🔪
focusbug_technologies CineRT Handset — easy CineRT control
teradek Bolt 6 LT Max — Wireless video transmission, seamless workflow.
And my good old atomos.global Samurai Blade for checking sharps and continuity.
.
.
Stand in, op, crafty: belen_mmt_
.
.
.
.
.
.
.
.
.
.
.
#cameraassistant #1stac #focuspulleratwork #filmgear #cameradept #cinetech #filmmaking #filmset #setlife🎥 #smallhd #teradek #focusbug_technologies #atomos #filmlife #cinematography #behindthescenes #camerawork
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Cine rt /pelican 1400 #181gear #181created #customfoaminserts #GearProduction #customcases #foamcase #Foamcaseinserts #protectivecase #photography #videographerlife #arri #pelicancase #cinert #focuspuller #focuspulleratwork #firstassistantcamera #focusbug_technologies #focusbug

Cine rt /pelican 1400 #181gear #181created #customfoaminserts #GearProduction #customcases #foamcase #Foamcaseinserts #protectivecase #photography #videographerlife #arri #pelicancase #cinert #focuspuller #focuspulleratwork #firstassistantcamera #focusbug_technologies #focusbug ...