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.Ā

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.Ā Ā


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 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.Ā 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
Wes Andersonās @thephoenicianscheme is out! A talented ensemble in front of the camera as well as behind. Our best to DP Bruno Delbonnelās team including 1st AC @vincentscotet and Steadicam Op and Key Grip extraordinaire @thegripworks !

Wes Andersonās @thephoenicianscheme is out! A talented ensemble in front of the camera as well as behind. Our best to DP Bruno Delbonnelās team including 1st AC @vincentscotet and Steadicam Op and Key Grip extraordinaire @thegripworks ! ...
Small companies like ours can be affected by many things, itās a long list, but nothing shakes a small team to the core quite like the loss of one of itās own.
A month ago today we lost Roz to cancer.
Rosiland Leggatt was the wife of Jon Ritchie, Focusbugās Co-Founder and Lead Product Designer. Although Roz did not sport an official title at Focusbug, she was very much a member from the beginning.
This is due in part to Jon and I starting Focusbug from home - Jon and Rozās home! Her backyard became a testing ground for endless walk-ups and a construction zone for our small electronics shop. Her dining room table became our shipping department.
She welcomed me in, a random stranger from the film industry and accepted her husbandās time being monopolized by a ridiculous plan to develop tools for an obscure job that most people have never heard of; and, despite being a scientist busy with her own career and the raising of two boys, she took it all in stride, routinely offering her support by hunkering down with us to cut cable into annoyling small lengths and to pick & pluck Pelican 1200 foam, etc., etcā¦
As I write this I wonder if Iām approaching things from the wrong angle⦠āPick & Pluckā, seriously⦠Itās just that it is excruciatingly hard to find the words when struggling to articulate the loss of a friend so interconnected with the intricacies of oneās life.
Roz, I simply miss you. You were such an essential part of everything we did the last ten years. You were an amazing mother, a loving wife, humorous, smart, vibrant, strong - so strong. Your bravery over the last two years was indescribable. We love you.
- Laird Pierce, Owner/Director

Small companies like ours can be affected by many things, itās a long list, but nothing shakes a small team to the core quite like the loss of one of itās own.
A month ago today we lost Roz to cancer.
Rosiland Leggatt was the wife of Jon Ritchie, Focusbugās Co-Founder and Lead Product Designer. Although Roz did not sport an official title at Focusbug, she was very much a member from the beginning.
This is due in part to Jon and I starting Focusbug from home - Jon and Rozās home! Her backyard became a testing ground for endless walk-ups and a construction zone for our small electronics shop. Her dining room table became our shipping department.
She welcomed me in, a random stranger from the film industry and accepted her husbandās time being monopolized by a ridiculous plan to develop tools for an obscure job that most people have never heard of; and, despite being a scientist busy with her own career and the raising of two boys, she took it all in stride, routinely offering her support by hunkering down with us to cut cable into annoyling small lengths and to pick & pluck Pelican 1200 foam, etc., etcā¦
As I write this I wonder if Iām approaching things from the wrong angle⦠āPick & Pluckā, seriously⦠Itās just that it is excruciatingly hard to find the words when struggling to articulate the loss of a friend so interconnected with the intricacies of oneās life.
Roz, I simply miss you. You were such an essential part of everything we did the last ten years. You were an amazing mother, a loving wife, humorous, smart, vibrant, strong - so strong. Your bravery over the last two years was indescribable. We love you.
- Laird Pierce, Owner/Director
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How I love the lightweight setup for Alexa 35! āš¼š¬
Alexa 35
Arri Master Primes
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.
.
#alexa #alexa35 #arri #arrimasterprimes #tvshow #1ac #focuspuller #rolling

How I love the lightweight setup for Alexa 35! āš¼š¬
Alexa 35
Arri Master Primes
.
.
.
#alexa #alexa35 #arri #arrimasterprimes #tvshow #1ac #focuspuller #rolling
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