Why you can use ipad as color reference display for filmmakers?
IPad Pro is a very good review and approval device – with a high-quality, accurate screen in an easy-to-use form factor.
Liquid Retina XDR display
Wide color display (P3)
True Tone display
SDR brightness: 600 nits max
XDR brightness: 1000 nits max full screen, 1600 nits peak (HDR content only)
1,000,000:1 contrast ratio
How to use Ipad as color reference?
Go to display settings optimized for critical viewing,
Settings > Display & Brightness
Automatic Brightness disabled
Brightness is set to about 40%-50%, which mimics 100 Nits recommended by standards bodies.
True Tone disabled
Night Shift disabled
No Auto Lock
Apple Ipad pro