Details
The fine detail of your photo, in Open Negative Initiative. Sharpening, colour noise and texture, judged in the loupe at the head of the tab, on your scan's full-resolution pixels.

Sharpening
Sharpens edges without adding colour fringing. It rests on, at 1.00×; a double click on Amount switches it off. On a contact sheet it is off and greyed, its values kept.
The app's own note on Sharpening
Sharpens edges without adding color fringing.
Sharpening
Sharpens edges on the brightness alone, so no colour fringing. Amount says how strongly, Radius at what size in your file's full-resolution pixels, and Halo limit how far an edge may go past its neighbours.
- It rests on, at 1.00×. A double click on Amount returns 0.00× and switches it off; the block's reset turns it on again.
- Radius sits at 2.1 px in the middle of its track, so the small radii get half of it.
- Judge it in the loupe at the head of the Details tab, which shows your photo at full resolution.
- On a contact sheet it is off and greyed, its values kept for when a photo takes them.
- Amount
- 0.00× to 3.00×, at rest 1.00×
- Radius
- 0.7 px to 8.0 px, at rest 2.1 px
- Halo limit
- 0% to 100%, at rest 50%
- Travels
- Copy Settings and Paste Settings carry it with the whole Color and Details tabs, and PASTE TO ROLL lays it on every photo of the roll; a preset carries it when its "Sharpening" box is ticked.
Chroma Denoise
Smooths colour noise from the scan, after the inversion, without touching the film grain. It rests on, at 20% and 4.0 px; hidden in B&W, off and greyed on a contact sheet.
The app's own note on Chroma Denoise
Smooths color noise from the scan without touching the film grain.
Chroma Denoise
Smooths the colour noise of your scan without touching the film grain. It runs after the inversion and acts on the colour alone.
- It rests on; Amount or Radius at 0 switches it off, and a double click returns the rest.
- Judge the dose in the loupe at the head of the Details tab.
- Hidden in B&W; off and greyed on a contact sheet.
- Amount
- 0% to 100%, at rest 20%
- Radius
- 0.0 px to 6.0 px, at rest 4.0 px
- Travels
- Copy Settings and Paste Settings carry it with the whole Color and Details tabs, and PASTE TO ROLL lays it on every photo of the roll; a preset carries it when its "Chroma Denoise" box is ticked.
Texture
Contrast at the scale of hair and fabric. The track is asymmetric: more room to add than to take away.
The app's own note on Texture
Contrast at the scale of hair and fabric — leaves grain and overall tone alone.
Texture
Contrast at the scale of hair and fabric, on the brightness of your photo, leaving grain and overall tone alone. The track gives more room to add than to take away.
- Texture
- -1.00× to +2.00×, at rest +0.00×
- Travels
- Copy Settings and Paste Settings carry it with the whole Color and Details tabs, and PASTE TO ROLL lays it on every photo of the roll; a preset carries it when its "Texture" box is ticked.
The rest of the manual.
Every surface of the app, in the order of your work. From the folder of scans to the exported file.
- ArchiveOpening the folder of your scans, your folders and favourites, the Archive and Projects tabs, a roll's own facts, the Rolls and Labels menus, and the ONI Trash.
- Prepare the RollThe five steps a roll goes through before its frames are edited: film, flat-field, film base, flags, measuring frame, then Measure.
- RollWhat a roll shares: film type, flat-field, source encoding, the manual balance, the levels, dye separation and Balance strength.
- CropThe framing's own Copy and Paste, aspect ratio, straightening, quarter turns and mirrors, and the measuring window.
- ColorAuto White Balance, Temperature and Tint, Lighting, Effects, Curves, the finishing blocks, and Paper Correction on a paper profile.
- De-dustThe brush for dust and scratches, its size, and the list of corrections painted on the open photo.
- ScannerThe Scanner face: ONI or Frontier, a lab scanner's keypad of D, C, M, Y and TEMP, and the finish laid after its render.
- PresetsThe deck, saving a preset, its eighteen switches and white balance choice, the Settings menu, and Copy and Paste.
- ExportThe export screen: three presets, format, space and paper profiles, size, the HDR hack, each photo's EXIF line.
- Toolbar and menusEvery key of the bar and of the canvas margin, and every menu item with its shortcut.
- The whole manualEvery surface on one page, in the order a roll goes through the app.
- The guideYour first negative converted, step by step.
Convert your first roll tonight.
Add your folder, prepare the roll once, export. Free, and nothing else to install.
- Mac
- macOS 13 or later on Apple Silicon or Intel
- Windows
- Windows 10 or 11 (64-bit)

Snow night. Kodak Gold, converted in Open Negative Initiative.