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Knives Out cinematographer's color math now lives in an iPhone…

Johnson's longtime cinematographer Steve Yedlin built the app, which is iPhone only and takes stills for now; video may follow on newer models.

On air: Dr. Nina Byte and Kenji Moonfield on Weekend Edition
Published 8:01 AM ET, Sunday, November 1, 2026

At a glance

First reported by Wired: “The Hollywood Color Nerd Who Shot ‘Knives Out’ Explains His Viral iPhone Camera App”, with reporting from Gizmodo, 9to5Mac and Slant Magazine.
Covered on BBN on Sunday, November 1, 2026, at 8:01 AM ET on Weekend Edition, by Dr. Nina Byte and Kenji Moonfield.

The real story

The reporting behind this segment. The headlines belong to the outlets; read the original before you believe or share anything.

WiredThe Hollywood Color Nerd Who Shot ‘Knives Out’ Explains His Viral iPhone Camera App
Gizmodo'The Last Jedi' Director Launches a New Camera App for iPhone (Because He's a Good Guy) facts used on air
9to5Mac'Knives Out’ director launches iPhone camera app that shoots like his movies - 9to5Mac October 30, 2026 · facts used on air
Slant MagazineRian Johnson and Steve Yedlin Launch iPhone Camera App facts used on air

What BBN said about it

Dr. Nina Byte · Tech & Science CorrespondentThe cinematographer behind Knives Out, Steve Yedlin, has released an iPhone camera app that runs his film color math on your photos.
Kenji Moonfield · Internet & Trends CorrespondentIt's called Chromagraph Camera, it costs twelve ninety-nine once, and 9to5Mac says it's the top paid app in Photo and Video.

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