MillFile

Convert ORF to JPG

ORF is what Olympus cameras write. Drop one here for a full-resolution JPG, decoded in this tab - no account, no watermark, nothing uploaded.

Quality:

Selected: Standard

Other formats: RAW to JPG CR2 to JPG CR3 to JPG NEF to JPG ARW to JPG DNG to JPG RAF to JPG RW2 to JPG

Why ORF files are worth converting carefully

Olympus writes ORF as a TIFF-based container, and some cameras pack more than one exposure into a single file: the high-resolution composite modes stack several frames into one. A converter that assumes one frame per file hands you the merge and calls it done, while one that understands the container can separate them. Either way the JPG here comes from decoding the sensor data rather than from the preview, so the resolution is the sensor's and not the thumbnail's.

Newer Olympus bodies also offer a Digital RAW option that writes a DNG instead. LibRaw handles both, and the path is the same either way: the file is read into this tab, the frame is demosaiced on your machine, and a full-resolution JPG comes back as a download.

Nothing is uploaded. The RAW file is decoded in this tab by LibRaw compiled to WebAssembly — no upload step, no server copy, no account.

Questions about converting ORF to JPG

What if my ORF contains more than one frame?

It still converts. The high-resolution composite modes on some Olympus bodies record several exposures into one file, and what you get here is the merged image the camera built from them. Pulling the stacked frames apart individually needs a tool written for that structure rather than a general RAW converter - this is one of the few things a single JPG cannot carry.

Does it handle Olympus Digital RAW?

Usually. Digital RAW on recent bodies produces a DNG, and LibRaw decodes DNG, so those files generally work. The extra processing data a DNG carries is not applied, so the render is plainer than the JPEG the camera shows on its own screen.

Will the JPG keep my Olympus picture mode?

No. A picture mode is a rendering choice made on top of the sensor data, and it is stored alongside the raw rather than inside it. This page renders with the white balance recorded in the file and a standard demosaic, so expect the same picture with flatter colour than the camera's own preview.

Why is my ORF so big for its resolution?

Older Olympus bodies wrote largely uncompressed raw, which is where the file size comes from - there is less in it, not more. Newer models compress. Either way the page warns you before starting a file over 60 MB, because a large frame needs a capable device to decode and re-encode.