How to Enable and Use Reference Mode on iPad Pro for Colour-Accurate Grading

Professional video colourists, digital photographers, and 3D visual effects artists require immaculate colour consistency across review displays and broadcast monitors. Standard consumer display features—such as True Tone, Night Shift, and auto-brightness—dynamically alter colour temperatures and luminance based on ambient room light, making precise colour grading impossible. To transform the iPad into a certified reference monitor, Apple created Reference Mode. Exclusively available on iPad Pro models equipped with Liquid Retina XDR or Ultra Retina XDR displays, Reference Mode locks the panel into standardised broadcast colour profiles, rendering uncompromised colour fidelity for critical production workflows.

What Is Reference Mode and How Does It Work?

When you enable Reference Mode on a supported iPad Pro, iPadOS disables all dynamic consumer colour adjustments and locks the screen to standardized reference colour targets:

• Fixed Luminance and White Point: The display locks to a consistent white point (typically D65) and clamps peak full-screen SDR brightness to 100 nits or peak HDR brightness to 1,000 nits, matching professional studio mastering standards.
• Standard Colour Gamut Conformance: Provides precise pixel tracking across industry colour standards, including BT.709 (HD video broadcast), BT.601 (SD television), DCI-P3 (theatrical cinema), and sRGB (web graphics).
• Sidecar Reference Monitoring: When connected to a Mac via Apple Sidecar, the iPad Pro acts as a secondary standalone clean video preview monitor for DaVinci Resolve, Final Cut Pro, and Adobe Premiere Pro.
• Fine-Tune White Point Calibration: Allows technicians to align the iPad screen with in-house studio spectroradiometers using physical calibration probes.

Hardware and Software Requirements

Because Reference Mode requires advanced Mini-LED or Tandem OLED panel hardware capable of sustained luminance uniformity, it is restricted to specific iPad models:

• 12.9-inch iPad Pro: 5th generation (2021) and 6th generation (2022) featuring Liquid Retina XDR displays.
• 11-inch & 13-inch iPad Pro (M4): All models equipped with Ultra Retina XDR Tandem OLED displays.
• Operating System: iPadOS 16, iPadOS 17, or iPadOS 18.

Step-by-Step: Enabling Reference Mode on iPad Pro

Activating Reference Mode takes just a few steps in iPadOS System Settings:

1. Open the Settings app on your compatible iPad Pro.
2. Tap Display & Brightness in the left sidebar.
3. Tap Advanced (located near the bottom of the Display menu).
4. Locate the Reference Mode toggle.
5. Switch the toggle to On.
6. Notice that upon activation, the True Tone and Night Shift controls are automatically disabled and greyed out, and the brightness slider is locked to the reference level.

Fine-Tuning Calibration with a Spectroradiometer

For high-end broadcast delivery requiring compliance with specific mastering monitors (such as Sony BVM monitors), iPadOS allows target white point offsets:

1. Navigate to Settings > Display & Brightness > Advanced.
2. Tap Fine-Tune Calibration.
3. Place your optical calibration sensor (spectroradiometer) on the measurement target displayed on screen.
4. Input the measured White Point (x and y chromaticity coordinates) and Measured Luminance into the respective calibration fields.
5. Tap Done. iPadOS computes an internal correction matrix to align the panel with your physical reference standard.

Using iPad Pro as a Reference Video Monitor via Sidecar

One of the most powerful implementations of Reference Mode is using the iPad as a dedicated video grading monitor alongside a Mac:

1. Connect your iPad Pro to your Mac using a certified Thunderbolt 3 or Thunderbolt 4 USB-C cable.
2. Open Control Centre on your Mac, click Screen Mirroring, and select your iPad Pro to initiate Apple Sidecar.
3. On your Mac, navigate to System Settings > Displays.
4. Select your iPad Pro display thumbnail and ensure its preset is set to Reference Mode (BT.709) or Apple XDR Display (P3-1600 nits).
5. In DaVinci Resolve or Final Cut Pro, route your clean video feed output to the Sidecar display window.

Enabling Reference Mode on iPad Pro delivers reference-grade colorimetry in an ultra-portable form factor, providing creative professionals with studio-level confidence anywhere they work.