Fujifilm RAF to JPG: X-Trans, film simulations and getting the look back
Fujifilm photographers often love the camera's JPEGs and are surprised by how plain their RAF files look. The reasons are specific to Fujifilm, and so are the fixes.
RAF is the RAW format used by Fujifilm's X-series and GFX cameras, as well as some older FinePix models. Many Fujifilm owners shoot RAF+JPEG precisely because the in-camera JPEGs, with their film simulations, already look finished. That raises a fair question: what is the RAF for, and why does it look so different once you open it? This page answers both and shows how to get from an RAF to a JPG you are happy with.
Two sensor designs behind one extension
Most X-series cameras use Fujifilm's X-Trans sensor. Instead of the common Bayer pattern, which repeats every 2x2 pixels, X-Trans uses a 6x6 arrangement of red, green and blue filters. Fujifilm designed it to reduce moiré without a strong anti-aliasing filter. The trade-off is that every RAW converter needs a dedicated demosaicing routine to turn that pattern into a full-color image, and different converters handle fine detail differently.
| Sensor type | Cameras | What it means for conversion |
|---|---|---|
| X-Trans | Most X-T, X-Pro, X-E, X-H, X-S and X100 models | Needs X-Trans-specific demosaicing; fine textures can render differently between converters |
| Bayer | GFX medium format, and some entry models such as the X-A series and X-T200 | Standard demosaicing, as with most other brands |
RAWSnap uses LibRaw, which includes an X-Trans demosaicing routine. Results are clean for most photos. In very fine, repetitive detail such as distant foliage or grass, you may notice that edges look a little softer or have a slightly painterly texture compared with what Fujifilm's own processing or specialized editors produce. For prints of detailed landscapes, that is worth knowing; for portraits, street photos and anything viewed on a phone, it rarely matters.
Film simulations are not in the RAF
Provia, Velvia, Astia, Classic Chrome, Classic Neg, Eterna, Nostalgic Neg, Acros and the other film simulations are applied by the camera's processor when it makes a JPEG. The RAF stores which simulation you selected, but the sensor data is unaffected. Fujifilm's own software can apply them; most third-party converters show a neutral rendering instead. The same goes for in-camera settings such as Grain Effect, Color Chrome Effect, Highlight and Shadow tone, and Clarity.
RAWSnap cannot reproduce Fujifilm's simulations exactly, and no preset claims to. You can get into the same general territory, though:
- Muted, documentary color (the feel of Classic Chrome): try Matte, then lower Saturation a little and add Contrast around +10.
- Soft, warm negative look: start with Warm Film or Vintage and adjust Temp to taste.
- Punchy slide-film color: Vivid, with Highlights pulled down so bright colors don't clip.
- Black and white (in the spirit of Acros): B&W Bold, then raise Shadows slightly if the image gets too heavy. Our black-and-white guide covers this further.
Once you find a combination you like, save it as your own preset so you can apply it to a whole shoot. See using presets for how.
DR100, DR200, DR400: why some RAFs open dark
Fujifilm's Dynamic Range setting protects highlights in a clever way. With DR200 or DR400, the camera exposes the sensor one or two stops darker, then brightens the JPEG's midtones and shadows. The RAF records the darker exposure. Fujifilm's processing knows to brighten it; other converters show it as shot.
So if a set of RAFs looks underexposed, check the DR setting before assuming you made a mistake. In RAWSnap, raise Exposure (try around +15 to +25 for DR200 and somewhat more for DR400, judging by eye) and lift Shadows, then pull Highlights down so the brightest areas don't turn harsh. The highlights and shadows guide explains the order to work in.
Compression and file size
Depending on the model, Fujifilm bodies offer uncompressed and lossless compressed RAW, and many newer ones add a lossy compressed mode as well. Lossless compressed keeps all the data at a smaller size and is the sensible default. The lossy compressed option saves more space with very little visible cost in normal shooting. GFX files from the 100 MP models are very large, so expect them to take noticeably longer to decode in a browser, especially on phones.
Converting RAF to JPG
- Open RAWSnap and choose your .RAF files. They are processed on your device only.
- Check exposure first (especially with DR200/DR400), then pick a preset or adjust color.
- Save for phone, save at full quality, or download several photos as a ZIP.
Fujifilm's own options
Fujifilm offers free software that is worth knowing about:
- FUJIFILM X RAW STUDIO uses the processor inside a connected camera to develop RAFs. Because the camera itself does the work, film simulations and other settings come out exactly as the camera would make them. It requires a compatible camera connected by USB.
- In-camera RAW conversion is available in the playback menu of most X and GFX bodies. You can change the film simulation, white balance and DR after the fact and save a new JPEG on the card, which is handy when traveling without a computer.
- Capture One and Lightroom both offer film-simulation-style camera profiles for many Fujifilm bodies, and they add noise reduction, masks and lens corrections.
If an exact Classic Chrome or Acros rendering is the goal, in-camera conversion or X RAW Studio is the honest answer. RAWSnap is for when you want a quick, private conversion on any computer, a look you build yourself, or a batch export without connecting a camera.
Troubleshooting RAF files
- New camera not recognized: open-source decoders add new models some time after release. Use in-camera conversion or Fujifilm's software in the meantime.
- Pixel Shift shots: on bodies that support it, the individual frames are combined in Fujifilm's Pixel Shift Combiner software. Open single frames in RAWSnap if you just need a normal-resolution JPG.
- Colors don't match the camera JPEG: film simulations shift color as well as contrast, and some lean warmer than a neutral development. Small Temp and Vibrance adjustments usually get you closer.
FAQ
Can I apply Fujifilm film simulations to RAF files in a browser?
Not exactly. Film simulations are Fujifilm's own processing. You can approximate a similar mood with presets such as Matte, Warm Film or B&W Bold, but for an exact match use in-camera RAW conversion or FUJIFILM X RAW STUDIO.
Why do my RAF files look darker than the JPEGs?
If you shot with DR200 or DR400, the camera exposed darker and brightened only the JPEG. Raise Exposure in your converter to compensate, then recover highlights as needed.
Is X-Trans harder to convert than a normal sensor?
It needs a special demosaicing method, so results vary slightly between converters, mainly in very fine detail. For most photos the difference is not noticeable at normal viewing sizes.
Should I keep shooting RAF+JPEG?
If you like the camera's film simulations, it is a good habit. The JPEG gives you Fujifilm's look immediately, and the RAF is there when exposure or white balance needs fixing.
Open the converter