LIVE AIR 4 SMART

50M Seamless Focus, Limitless Possibilities

Powered by Advanced AI & Virtual Lens Modeling

LIVE AIR 4 SMART features a dual upgrade in hardware and intelligent algorithms, breaking through the autofocus distance limits of the previous generation LiDAR motor. It now supports longer-range autofocus and unlocks a wider range of creative applications.

20000+

Since the release of REMOTE AIR APP in 2015, users have shared over 20,000 sets of lens data with us

512+

Through analysis and extraction of the data, we have built a set of 512 virtual lens models

Simulated Lens Data

During calibration, the system selects the lens model that most closely matches the actual lens. U sing AI algorithms, it then generates accurate virtual lens data.

Data Integration

Via the motor’s Type-C port, control protocols and even LiDAR data can be shared with third-party devices such as robotic arms or virtual production systems—enabling seamless collaborative workflows.

Smarter with Dual LiDAR

A Classic, Upgraded

The LiDAR motor has been fully upgraded—introducing the all-new MOTOR SMART with improved indicator layout and enhanced torque. While retaining all core features and the precise LiDAR ranging module from the previous generation, it now adds an innovative long-range LiDAR module. This groundbreaking dual-LiDAR system delivers a new level of performance in both short and long distances.

Short-Range LiDAR
Max 5M Autofocus Distance
28° Scanning Angle

Long-Range LiDAR
Max 20M(AI-virtualized to 50M) Autofocus Distance
6°(AI-virtualized to 12°) Scanning Angle

Incredible Range & Precision

Whether shooting indoors or outdoors, under bright sunlight or in complete darkness, LIVE AIR 4 SMART delivers consistently accurate LiDAR autofocus.

Up to 20m autofocus range in indoor environments

Up to 15m autofocus range even under strong outdoor sunlight

Built-in Gyroscope

AI-Powered Virtual Focus Tracking

Equipped with a high-performance LiDAR module and built-in gyroscope, LIVE AIR 4 SMART integrates AI-based virtual learning technology to intelligently record and learn focus paths during shooting. Using this data, the system can simulate and predict focus within a 12° tracking field of view—enabling virtual autofocus performance at distances up to 50 meters. This ensures smoother and more stable focus transitions, even with fast-moving subjects.

Once the object moves out of the scanning range, the AI’s virtual 12-degree field of view will quickly predict and lock onto the focus, preventing sudden drastic changes in focus that could damage the image.

When the subject exceeds the effective scanning range, the motor intelligently calculates based on the movement speed and autofocus behavior it learned during previous autofocus operations (such as movement speeds and focus responses for distances like 0–5m, 5–10m, 10–15m, and 15–20m). Using this data, the system can virtually predict the subject’s movement speed and autofocus requirements between the point where the subject exceeds the scanning limit and up to 50 meters, enabling AI-driven virtual autofocus to reach a distance of 50 meters.

Dual LiDAR Modules for Enhanced Autofocus

Wide-Area + Narrow-Beam Focusing Technology

Multiple Focusing Modes to Empower Your Creativity

Hybrid Focusing Mode

Simultaneous Use of Short and Long-Range LiDAR Modules

In Hybrid Mode, both the short-range and long-range LiDAR modules work together:When the subject is within 5 meters, the system prioritizes data from the short-range LiDAR for precise measurement. Once the subject moves beyond that range, the long-range LiDAR seamlessly takes over—maintaining stable and accurate autofocus across varying distances.

Narrow-Beam Focusing Mode

Long-Range LiDAR Takes the Lead

Narrow-Beam Focusing Mode uses only the long-range LiDAR for distance measurement and autofocus, reducing power consumption. Its key advantage: regardless of subject distance or complex environments with multiple nearby objects, you only need to align the LiDAR beam with the intended subject (e.g., when the motor is mounted directly below the lens, the beam aligns just below the monitor’s crosshair) to achieve accurate focus lock. This mode effectively prevents focus shift caused by multi-target interference, making it ideal for capturing small objects or scenes that demand high-precision focusing.

Double Power Mode

Higher Frame Rates, Every Frame in Focus

When the MOTOR SMART is powered via USB-C and the battery level remains above 95%, the system will automatically enter Double Power mode. In this mode, the LiDAR ranging refresh rate can reach up to 960Hz, and the motor's peak instantaneous torque can reach 1.2Nm, ensuring frame-by-frame focusing as long as the LiDAR detects a subject—every frame remains sharp and clear. (As long as the USB-C power supply remains connected, the Double Power mode can be sustained for extended periods. This mode requires the motor to operate in the high-speed focus gear.)

Fore/Back Focus Switching Mode

Focus lock on the nearest or farthest object within the LiDAR scanning range.

It is possible to configure the autofocus logic within the short-range LiDAR scanning range by connecting a control handwheel, allowing for either foreground focus lock or background focus lock.

When the controller is rotated to the nearest focus position

The motor locks focus on the background

Master–Slave Mode

It can both transmit and receive—functioning as a follow focus and a LiDAR controller.

The LiDAR motor on the LIVE AIR 4 SMART is more than just a follow focus—it's also a rangefinder and controller. You can mount the LiDAR motor anywhere, adjust its angle, use its ranging function independently, and connect it via Bluetooth to older Bluetooth motors or the PD4-HT controller to drive other motors for autofocus.

Manual Control Mode

An ultra-low-latency, fully wireless follow focus powerhouse.

At its core, the LIVE AIR 4 SMART is a powerful yet easy-to-use wireless focus system. When LiDAR autofocus isn’t needed, it supports manual wireless control with high torque and ultra-low latency—giving you a hands-on, traditional shooting feel.

Open Data Protocol

The upgraded MOTOR SMART features a USB-C port for both power and data transmission. With SDK support, control access and LiDAR data are open to third-party systems—ideal for integration with robotics, arms, and other large-scale mobile rigs.

LiDAR in Real-World Applications

The LIVE AIR 4 SMART is highly versatile—ideal for professional film crews, small indie studios, or solo shooters—delivering stable and efficient focus control for any setup.

LiDAR in Real-World Applications

The LIVE AIR 4 SMART is highly versatile—ideal for professional film crews, small indie studios, or solo shooters—delivering stable and efficient focus control for any setup.

LiDAR in Real-World Applications

The LIVE AIR 4 SMART is highly versatile—ideal for professional film crews, small indie studios, or solo shooters—delivering stable and efficient focus control for any setup.

Three Adjustable Focus Speeds

Fast and responsive—instantly locks onto the subject. Perfect for capturing fast-moving action.

Balanced and versatile—ideal for most general shooting scenarios.

Smooth and subtle transitions—perfect for cinematic shots with gentle focus shifts.

Compatible with Most Manual Focus Lenses

The LIVE AIR 4 SMART autofocus system works with most manual-focus cinema and DSLR lenses that have built-in focus stops. It also supports certain electronic DSLR lenses without hard stops—especially those with depth-of-field scales and linear manual focus capability.

Up to 6 Hours of Extended Battery Life

The upgraded MOTOR SMART is powered by a LI-42Bx3 battery pack, offering up to 6 hours of continuous operation per pack. Batteries are hot-swappable for quick, on-the-go replacement. It also supports 5V USB-C power input for uninterrupted operation during long shoots, ensuring reliable and stable focus performance.

LI-42Bx3 1800mAh

Battery Pack Capacity

12.6V 6 Hours

Voltage Run Time

Motor Power Indicator Light

On the new MOTOR SMART LiDAR motor, the small circular LED indicates the current battery level by color.

Lens Data Channel Indicator

The large circular LED shows the current autofocus data channel. Up to 5 lens data can be stored and recalled. Double-press the motor button to cycle through channels.

Function Button

A single button with multiple tap combinations allows for easy configuration of motor functions.

Standard 0.8 Mod Gear Included

The motor comes pre-equipped with a 0.8 Mod gear. You can also purchase additional 0.4/0.5/0.6 Mod gears to accommodate different lenses.

No Signal Interference

Even when multiple LiDAR motors are used simultaneously on set—for ranging, autofocus, or Bluetooth control—they operate reliably without cross-interference.

Compact and Versatile—Mount It Anywhere The Smallest Focus Control Wheel to Date

Professional Wireless Follow Focus System

Flexible Mounting, Broad Compatibility

Beyond its impressive autofocus capabilities, the LIVE AIR 4 SMART remains a professional yet user-friendly wireless follow focus system. The controller features a standard 1/4″ screw mount, allowing easy attachment to rigs, handles, monitors, and other accessories—ideal for a wide range of shooting setups.

REMOTE AIR RIG

Cinematic Handwheel Expansion

Insert the compact focus controller into the REMOTE AIR RIG handwheel module to achieve a cinematic-grade focusing feel. The REMOTE AIR RIG is modular and expandable, supporting accessories like monitors. Its handle includes multiple standard 1/4″ screw ports for flexible mounting in diverse shooting environments.

Ecosystem Accessories

Pair the LiDAR motor with the MINI MATTE BOX for optimal performance with compact manual focus lenses. Its lightweight design reduces operator fatigue, while strategically placed mounting points support a variety of accessories—balancing practicality and flexibility. It also minimizes image shake caused by loose mounts, making it ideal for small studios and solo focus pullers who demand both portability and professional reliability.