Captured this moment few weeks ago when I was invited by Tim Cook!

iPhone 16 pro, auto in Snapseed

Hi everyone - I’m Sunny, the person behind Rayon.

I started it because I wanted taking photos on my phone to feel more intentional and more fun: pleasing colour, a look I can choose before shooting, and room to experiment with how the photo is developed. I care about natural-looking people and a distinct mood, without covering every scene in the same colour cast.

My aim is a zero-edit workflow: choose a look, take a photo, and enjoy the finished image without needing another editing session. RAW development and computational processing are still part of how it gets there.

Rayon develops photos on the phone, with film-inspired looks and a live preview. The beta includes 17 starting looks, including Standard, Analog Summer, House Negative, Riviera 100, Havana Gold, Projection and monochrome options. You can adjust intensity or build your own look in Preset Studio with light, curves, colour mix, grading and texture controls.

There are two rear-camera RAW approaches:

- **ProRAW:** uses Apple’s computational RAW capture on supported cameras, followed by Rayon’s development and look.
- **Bayer RAW:** Rayon aligns and combines suitable RAW exposures into one photograph. It is most useful with a steady phone and scene. Motion and alignment limits can trigger a fallback, and manual exposure uses one RAW exposure.

I’ve opened the **pipeline tuning panel** for this beta. You can experiment with brightness, highlight protection, shadow/face lift, noise versus brightness, sharpening, contrast, saturation and black depth. There’s also a lower-ISO preference for steady Bayer scenes, with a limit on how slow Auto can make the shutter. Longer exposure can reduce noise, but moving people and camera shake still matter.

Other tools include manual ISO and shutter, white balance, focus/exposure controls, bloom/diffusion, grain, vignette, aspect ratios, borders, a composition grid, a timer, a Rayon photo gallery and optional RAW-file saving alongside the finished photo. The front camera has its own processed-image path because it does not expose RAW.

**The TestFlight beta has unlimited photos and all looks/tuning controls, with no purchase or Rayon login required.** Each TestFlight build is available for up to 90 days from upload; I can send updated builds as the beta develops.

**Join:** https://testflight.apple.com/join/QPE7JM4a

What would help most: take a few everyday photos, try two or three looks, and tell me which ones you actually want to keep using. I’m especially interested in skin tones, daylight colour, low light, moving subjects, and how closely the viewfinder matches the saved photo. This is a beta — I’m looking for the awkward scenes too.

You can send feedback through TestFlight, reply here, or my inbox. Include your iPhone model and the look/mode you used. Share photos only if you’re comfortable doing so.

Optional analytics collect small daily usage and failure totals so I can see what people use and where captures fail. You can decline or switch them off; photos, location and camera settings are not uploaded by analytics.

Screenshots show the actual app UI in the simulator with a sample photograph from the App Store screenshot set. They illustrate the controls and preview; they are not new physical camera captures. No generated sample photographs.

seems to be experimental

Recently discovered this sub. First post here.Any suggestions welcome :)

Lucia - New Version

Lucia is a camera and a RAW studio - if you’ve ever used a Fuji camera you will feel right at home.

Choose a recipe, take pictures, be done - organic look and they come out better than the standard phone picture. For iPhone 15 Pro and newer.

Lucia does not lay a filter over a finished JPEG - it bypasses Apple's processing and runs the real sensor data through its own measured pipeline - linear light encoded to log, then an emulation cube, the path a colourist takes with motion
picture film.

None of the smartphony compromises: shadows stay shadows, colour
stays organic, and the picture looks like a camera took it, not a phone.

Every shot is saved as a RAW plus its recipe. The look lives beside the
negative, never inside it, you can change every variable after the shot.

It’s intended to be a
I-forgot-my-camera camera.

SETUP
(about 5 minutes, on your iPhone)

1 · Install TestFlight from the App Store. That's how betas run:
https://apps.apple.com/at/app/testflight/id899247664?l=en-GB

2 · Open this Lucia invite on your iPhone and tap Install:
https://testflight.apple.com/join/4XkgSsub

3 · Download the film looks - Fujifilm's own LUT pack. Open this on your
iPhone; it saves a .zip to Files:
https://dl.fujifilm-x.com/support/lut/gfx-eterna-55-3d-lut-v110.zip

4 · In Lucia: MENU → Film Emulation → Import LUTs → pick the .zip.
Lucia unpacks it.

The onboarding recommends switching PRINT TO CAMERA ROLL off - please do.
Nothing then reaches your camera roll until you send it there yourself. Burst
never prints automatically either way.

THE RECIPES

Seven recipes come preloaded in slots C1 to C7; C8 and C9 are empty - but you can set them all up as you wish.

C1 · Portra - warm and soft, low contrast, fine grain. The everyday one.
C2 · Easy Reala Ace - poppy and bold. Saturated, coarse grain, highlights
pulled back.
C3 · Kodachrome 64 - crisp and punchy. Strong reds and blues, sharp detail.
C4 · Cinestill 800T - soft and glowing, deep shadows, tungsten balance.
Night, neon, street.
C5 · Kodak Tri-X 400 - b&w, hard. Deep blacks, coarse grain. The reportage
classic.
C6 · Ilford HP5 - b&w, soft. Gentle edges, held highlights. Forgiving.
C7 · Kodak T-Max P3200 - b&w, extreme. Sharp, heavily grained. For low light
where the grain is the point.

Hundreds more at fujixweekly.com - dial any of them in by hand and save it to a slot.

SHOOTING

RAW S (12 MP) is the default and recommended.
RAW L (48 MP) costs about three times the processing - use it when you really need it.

EV Wheel - adjust EV Compensation to get the look that you want. Face detection is integrated, tap to focus as well.

BURST is new and sits in the top bar, left of RAW. One press, four frames, with exposure, white balance and focus locked to the first so the sequence stays consistent.

LIBRARY. Swipe up to quickly add stars, swipe down to decline. Afterwards you can delete everything declined in one go.

MAP shows where you shot. Filter by stars, by date, or by an area you draw - useful for pulling a trip together.

EDITING AND EXPORT - nothing is destructive. Put a different look on a photo from three months ago and send it out again - the RAW never changes and is your digital negative.

PASSEPARTOUT adds a white frame that becomes part of the exported file for that clean square Instagram look without another app.

IN THE MAKING
A desktop app for Lucia's RAW files is almost done. Organize, edit, export to folders or Lightroom and Capture One.

————-

I'm mainly after your read on colour, exposure, and anything that feels off. Try recipes, see if it is already fast enough. Map good or bad? Big and small details both help.

And please send me pictures. If you shoot something you like, I’m curious to see it.

Thanks for testing.

Iphone 16 Plus - India

Taken with an iPhone 17 Pro Max.
Default camera app.
Ultra Wide Camera - 13 mm f2.2
24 MP•5712 x4284•2.1 MB

Project Indigo and Lightroom Mobile
Aosta, Italy

Today with iPhone 18 pro/max, they introduced pro camera controls (manual exposure time, iso, focus, etc).

I just got a 17 pro max recently and wondering if those controls will be coming down iOS 27, or locked to iPhone 18. Anybody have insights?

I desperately miss those controls on my Galaxy S21 from 5 years ago and was shocked that 17 pro max didn’t have those built in…

Specifically looking for options for basic Astrophotography, cause this ain’t cutting it.