Focusbug Cine RT: Precision Ultrasonic Rangefinder for Film Sets
Discover how the Focusbug Cine RT system provides first assistant cameras with an invisible, real-time tape measure for surgical focus precision on film sets.
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The Cine RT is effectively an invisible, real-time tape measure that tracks subjects with surgical precision. It is built for modern high-resolution sensors and large-format glass where one inch of error can ruin a take.
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Technical overview and application of the Focusbug Cine RT ultrasonic rangefinder system in the film industry, including its use by focus pullers for real-time distance tracking.
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The Focusbug Cine RT is a precision ultrasonic rangefinder system designed for modern cinematography. It acts as an invisible, real-time tape measure that helps the first assistant camera maintain sharp focus on high-stakes film sets. By using a computational ecosystem of hardware, it provides surgical precision that is essential when working with unforgiving high-resolution sensors and large-format glass where even a one-inch error can ruin a take.
The system consists of four primary hardware components that communicate over a 2.4 GHz ISM band at distances up to 800 feet. These include the Ultrasonic Base Sensor, which serves as the brain on the camera, and the Handset Control Unit for remote command. Additionally, the setup features a High-Bright LED Display for quick visual references and the Bug Ultrasonic Transmitter, a small device that can be hidden on an actor.
The Bug Ultrasonic Transmitter is a tiny device that can be placed in an actor's pocket to allow for constant tracking. Unlike older ultrasonic systems, this setup enables the first assistant camera to track subjects accurately even when they move behind obstacles or turn away from the camera. This technology ensures the camera remains locked on the subject's position in real-time, providing a reliable alternative to traditional physical tape marks.
On fast-moving film sets with complex gimbal rigs, physical tape marks and manual measurements are often luxuries that crews cannot afford. The Focusbug Cine RT provides an invisible tape measure that tracks subjects with surgical precision in real-time. This efficiency is vital for first assistant cameras who must ensure perfect focus for high-resolution sensors, where traditional methods might be too slow or imprecise for unpredictable movements.
Creado por exalumnos de la Universidad de Columbia en San Francisco
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Creado por exalumnos de la Universidad de Columbia en San Francisco
"Instead of endless scrolling, I just hit play on BeFreed. It saves me so much time."
"I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."
"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."
"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."
"Reading used to feel like a chore. Now it’s just part of my lifestyle."
"Feels effortless compared to reading. I’ve finished 6 books this month already."
"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."
"BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."
"BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"
"It is great for me to learn something from the book without reading it."
"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."
"Makes me feel smarter every time before going to work"
"Instead of endless scrolling, I just hit play on BeFreed. It saves me so much time."
"I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."
"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."
"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."
"Reading used to feel like a chore. Now it’s just part of my lifestyle."
"Feels effortless compared to reading. I’ve finished 6 books this month already."
"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."
"BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."
"BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"
"It is great for me to learn something from the book without reading it."
"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."
"Makes me feel smarter every time before going to work"
"Instead of endless scrolling, I just hit play on BeFreed. It saves me so much time."
"I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."
"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."
"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."
"Reading used to feel like a chore. Now it’s just part of my lifestyle."
"Feels effortless compared to reading. I’ve finished 6 books this month already."
"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."
"BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."
"BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"
"It is great for me to learn something from the book without reading it."
"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."
"Makes me feel smarter every time before going to work"
