Acetate app icon
Case study

Acetate: the digital darkroom for purists.

A RAW camera, cine video recorder and colour grading editor for iPhone, with film looks you can make your own. Everything runs on the device.

PlatformiPhone
CategoryPhoto & Video
PriceFree
Current version1.2
The problem

Phone cameras decide for you.

Heavy processing, baked-in looks and editors that want an account and a subscription. Photographers and filmmakers wanted the raw data, real controls and film looks they could own.

So we built a camera and darkroom that treats the iPhone like a serious tool, and keeps every frame on the device.

Acetate camera with exposure readouts
Acetate sky adjustment
What we built

Capture. Grade. Develop.

StillsPure RAW capture

Apple ProRAW (DNG) with Auto, P, S, ISO priority, Manual, Night and long exposures up to 30 seconds.

MotionShoot cine

Up to 4K with manual ISO, shutter, white balance and focus. 10-bit Apple Log, ProRes 422 or HEVC, with timecode and shutter angle.

LooksTwenty film LUTs

Film-stock emulations and art-directed looks. Hold to preview live, and see exactly what each one does to the sliders.

EditorA real grading suite

Colour wheels, OkLab HSL, curves, split toning, filmic highlight roll-off, dehaze, texture and edge-aware denoise.

MasksOne-tap selections

Subject, person, background and sky masks from Apple’s Vision framework, plus radial and gradient masks.

YoursBake your own LUTs

Save any edit as a .cube LUT, shoot with it in the camera, or take it to Lightroom, Premiere or DaVinci.

The hard parts

One colour pipeline, stills and motion.

  • Shared pipeline

    The same colour engine drives the photo editor, the video editor and the camera’s live LUT preview, frame by frame.

  • Pro monitoring

    Live histograms, a luma waveform, zebras, false colour, focus peaking and a level, without slowing capture.

  • Smart LUT

    On-device intelligence writes a per-scene recipe, then puts it on editable sliders so nothing is a black box.

  • Fully offline

    Capture, edit, AI and export all work without a connection or an account.

Acetate RGB curves
Acetate saved LUTs
Privacy

No account. No cloud. No tracking.

Photos and videos stay on the iPhone. Location is only used to geotag shots, and never leaves the device.

Want something built like this?

Next case studyUpshot