Rian Johnson's Chromagraph Brings Hollywood Color Science to iPhone Photography — We Tried It

Source: Date:

When a Hollywood director decides the iPhone's camera isn't cinematic enough, what happens? You get Chromagraph — a new photography app that's been making waves online, and it comes with a genuine filmmaking pedigree.

The story begins with Rian Johnson, the acclaimed writer and director known for Star Wars: The Last Jedi, Looper, and the Knives Out series. Johnson took to social media to share that he'd been pestering his longtime cinematographer, Steve Yedlin, to build what he considered the perfect iPhone still camera — one that shoots RAW, sidesteps Apple's computational look, and applies the very same image processing pipeline used on their feature films.

So I recently badgered my cinematographer @steveyedlin into making my ideal iPhone still camera app. It shoots RAW, bypasses the iPhone's look processing and instead uses the same image processing we use on our movies. https://t.co/makZzhFd2Q

— Rian Johnson (@rianjohnson) October 28, 2026

Yedlin, who has lensed every one of Johnson's films, teamed up with friend Eric Cameron to turn that request into reality. The result is Chromagraph.

What sets Chromagraph apart from the crowded field of iPhone camera apps is its fundamental approach. Rather than relying on Apple's imaging pipeline and slapping a filter on top, the app pulls raw sensor data and runs it through its own processing — built around the color science Johnson and Yedlin have refined across their filmography. There's some room for adjustment, but the core aesthetic is intentional and fixed: it's the creators' vision, delivered to your pocket.

Still from Rian Johnson's latest film, 'Wake Up Dead Man'

I spent time with the app on an iPhone 18 Pro, and the first thing that struck me was the minimalist interface, dressed in black and gold. Anyone familiar with smartphone photography will feel right at home — this isn't one of those professional-grade apps burying you under endless toggles. Chromagraph has a single mission, and every option on screen serves it.

Digging into the settings reveals controls for file saving behavior, aspect ratio, default lens selection, export format, and compression quality. You can also shape the default rendering of your shots, which I'll get to shortly.

Chromagraph UI and settings

Photos are stored in-app as RAW files by default. There's an option to automatically generate JPEG copies, though I preferred manually exporting only the keepers. Opening any captured image gives you a solid set of editing tools: exposure, contrast, shadows and highlights, white balance, saturation, film grain, halation, and cropping. You can even lock in a default crop factor for shooting, with the viewfinder adjusting accordingly — and since everything is RAW, the full frame is always recoverable.

Think of these adjustments as seasoning rather than a recipe overhaul. They're meant to refine, not reinvent. Fans of Johnson and Yedlin's collaborations will instantly recognize the signature look: lush warmth, saturated-yet-tasteful colors, and a gentle glow wrapping the highlights. Their movies aren't shot on film, but they chase that feeling — and Chromagraph translates it to iPhone hardware remarkably well.

Chromagraph samples (shot on the iPhone 18 Pro)

Out of the box, every frame carries that characteristic golden warmth. There's no desperate clinging to highlight detail or aggressive shadow lifting for the sake of spec-sheet bragging rights. High-contrast edges get a soft, dreamy bloom. Detail rendering is honest — whatever the sensor and glass resolve, free of artificial sharpening. Grain is present, partly organic and partly added with a careful hand. This is an app that prioritizes emotional resonance over clinical accuracy, embracing deliberate imperfection.

When conditions suit it, the output can be genuinely breathtaking. Bright sunlight and punchy contrast are Chromagraph's natural habitat — feed it good natural light and it delivers images worthy of printing. The default tuning is opinionated, meaning results are either spectacular or noticeably off, with little middle ground. If the ambient light cooperates with the app's philosophy, minor post-capture tweaks can salvage most shots, and you can always redefine the defaults to bake your preferences in from the start.

That said, the app's boundaries become apparent quickly. Artificial indoor lighting — fluorescent sources especially — can produce strange, sometimes unflattering results straight out of camera. In those situations, you'll need to take the wheel and deliberately cool things down so the baked-in warmth doesn't fight the environment.

iPhone stock vs Chromagraph look

The stock color rendering leans subtle and slightly desaturated. Vibrant subjects like plated food or bold fashion simply won't pop without cranking the saturation slider hard. Unless muted tones are your preference for such subjects, it's best to steer Chromagraph toward scenes it was born to shoot.

The software experience itself has rough edges. Viewing a photo is effortless, but returning to the viewfinder means hunting for a small camera icon up top. The app forgets your last-used lens every time you visit the gallery, reverting to the main camera or whatever default you've configured. And occasionally the viewfinder stuttered or failed to load entirely — even on Apple's latest hardware.

Chromagraph's anamorphic 2.39:1 aspect ratio

None of this diminishes what Chromagraph is: a wonderfully opinionated, occasionally frustrating, deeply enjoyable creative tool. It won't suit every subject or situation, yet I haven't had this much fun shooting on a phone in years. Constraints breed creativity, and working within this app's strict aesthetic boundaries pushed me to think differently about composition and light. Updates have also been arriving steadily since Johnson's announcement tweet, so several of these gripes may already be resolved.

Should this be your go-to iPhone camera app? Honestly, no — and it isn't trying to be. Apps like Halide and Mood already deliver excellent zero-processing RAW capture for those who want a clean slate to edit freely. Chromagraph exists to produce one specific look, crafted by two filmmakers at the top of their game. If that look speaks to you, downloading it is a no-brainer.

Scroll to Top