XR / VIRTUAL PRODUCTION

Unreal Engine Camera FOV Calculator

Calculate the horizontal field of view and LED wall frustum size for XR virtual production based on camera focal length and sensor size.

Essential for matching real-world lenses to Unreal Engine CineCameras. Use this alongside our LED wall planner to dimension your volume. Explore more broadcast engineering tools for IP video and media networking.

Horizontal FOV (Unreal) 37.8 °
Vertical FOV 21.8 °
Focal Length (Unreal mm) 35.0 mm
35mm Equivalent 52.9 mm
Unreal Engine CineCamera settings:
Filmback → Sensor Width: 23.76 mm  |  Sensor Height: 13.365 mm  |  Focal Length: 35.0 mm  |  Field of View: 37.8°

Real-World Use Cases

LED Volume / In-Camera VFX

Configure Unreal Engine's inner frustum to exactly match the shoot camera's Filmback and focal length so the virtual background aligns perfectly through the lens.

Pre-Viz & Tech Scouting

Match the exact FOV of cameras planned for a shoot to pre-visualise compositions in Unreal Engine before committing to physical lens choices.

Augmented Reality Broadcast

Align a virtual studio graphics layer with the studio camera by matching sensor dimensions and lens focal length for zero-parallax key compositing.

Lens Calibration Verification

Cross-reference the calculated FOV against your tracking system's computed FOV to identify calibration drift or optical distortion that needs correction.

Use this in your next XR production

Bookmark and share with your VP supervisor or camera department.

What is the XR Camera FOV Calculator?

Matches physical cinema lenses to virtual Unreal Engine CineCameras by calculating Horizontal and Vertical Field of View (FOV) based on focal length and sensor filmback size.

This utility was engineered to eliminate the guesswork from high-pressure broadcast environments. Whether you are managing multi-camera sync or complex IP networking, precision measurements ensure that the technical infrastructure stays stable throughout the duration of the event.

Real-World Use Cases

Used during virtual production calibration to ensure that the virtual frustum rendered on the LED wall matches the perspective and alignment of the physical camera's real lens.

Understanding these variables is critical for minimizing system-wide latency and avoiding technical debt in live productions. This tool provides instant validation of your technical specifications before you even power on a single piece of hardware.

Technical Methodology

Utilizes the mathematical relation: FOV = 2 * arctan(sensor_dimension / (2 * focal_length)). It provides exact values for the Unreal Engine 'Filmback' settings to prevent lens distortion.

Our formulas are based on established SMPTE and EBU standards. By calculating these values theoretically, engineering teams can design predictable workflows and set clear expectations for clients regarding production quality and protocol limitations.

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LED Wall Planner Tracking Latency Calculator Camera Depth of Field Calculator All Broadcast Tools