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Supports: ORF
An Olympus .orf is your editable digital negative; a .tif is the flat, rendered handoff that print labs, layered editors, and archives expect. They are not interchangeable: convert to TIF when you need a universally readable, lossless print or archival copy, but keep the original ORF, because the moment a TIF is written your raw editing latitude is baked in and gone. This converter renders the ORF and writes the TIF on our servers — pick a lossless compression type and the rendered pixels are preserved exactly.
| Property | ORF (Olympus RAW Format) | TIF / TIFF (rendered output) |
|---|---|---|
| What it is | Raw digital negative, single still | Rendered raster image |
| Full name | Olympus RAW Format | Tagged Image File Format |
| Built on | TIFF/EP container (camera RAW family) | TIFF container — 1986 (Aldus), TIFF 6.0 in 1992, maintained by Adobe |
| Sensor / color data | Unprocessed Bayer mosaic; 12-bit (most bodies) or 14-bit, written into 16-bit-aligned values | Rendered RGB pixels, lossless or lossy |
| Editing latitude | Full — white balance, exposure, and tone recoverable | Limited — render and Art Filter baked in |
| Compression | No compression or lossless | LZW, DEFLATE, PackBits (lossless) or JPEG/LOSSY (lossy) |
| Native browser support | None — needs a raw viewer | Safari only; not a web delivery format |
| Comes from | Olympus, PEN, OM-D, and OM SYSTEM bodies | Any image or raw, once rendered |
| Best for | Master archive, re-editing with full latitude | Print, layered editing, long-term archival |
.orf at all — most apps and every browser refuse it — and needs something a standard image tool will read..orf files onto the page or click "+ Add Files" to browse. You can queue several raw frames straight off an OM-D, PEN, or OM SYSTEM body and convert them with the same settings..tif or .tiff value under "File extension" to match your workflow.It depends on what you need next, not on which is "better." The ORF is the better master — it holds the unprocessed 12- or 14-bit sensor data and lets you redo white balance, exposure, and tone any time. The TIF is the better deliverable — a flat, rendered image that print labs, layered editors, and archives read without OM SYSTEM software. The right workflow is usually both: keep the .orf as your editable negative and convert a TIF only when something downstream needs a universally readable copy.
You keep the pixels but lose the latitude. Choosing LZW or DEFLATE compression keeps the TIF mathematically lossless, so no pixel data is discarded at the encode step. The trade-off is in the render itself: to write a TIF, the converter has to demosaic the raw and bake in a white balance, exposure, tone curve, and any Olympus Art Filter look to produce a viewable image. That baked-in interpretation is what you can no longer freely undo — pixel fidelity is intact, editing latitude is not. Pick the JPEG compression type instead and the file also becomes lossy, so leave it on LZW or DEFLATE for archival work.
This conversion renders a standard TIF and does not expose a separate 8-bit/16-bit selector, so treat the output as a high-quality rendered image rather than a hand-tuned high-bit master. Worth knowing about the source: Olympus and OM SYSTEM bodies capture a 12- or 14-bit sensor readout, but those bits are sensor precision, not something the TIF exposes as a control here. If your workflow depends on a guaranteed 16-bit-per-channel file for heavy grading, do the raw development in a dedicated editor where you can set the bit depth explicitly, and keep the .orf as your master.
The ORF holds a single raw mosaic — one value per photosite — while a TIF stores fully rendered RGB pixels across three color planes. Even with LZW or DEFLATE, a TIF from a high-megapixel Micro Four Thirds sensor commonly runs larger than the raw it came from. In our testing, a 20-megapixel ORF around 20 MB rendered to an LZW TIF several times that size. If size matters more than print fidelity, convert ORF to JPG instead, or downscale with the "Image resolution" control before converting.
They are the same format — "TIF" is just the old three-letter DOS-era spelling of "TIFF," and the bytes inside are identical. The TIFF container dates to 1986 (Aldus) with TIFF 6.0 standardized in 1992 and maintained by Adobe. This tool lets you pick either the .tif or .tiff value under "File extension," since some legacy software is picky about three characters; if you specifically need the four-letter name, use ORF to TIFF. TIFF is built for print and archival, not the web — browsers other than Safari can't display it (per MDN), so for web delivery use ORF to JPG or ORF to AVIF.
Not reliably. An ORF records the raw sensor data plus the camera's settings, but an Art Filter, color profile, or in-camera style is a rendering instruction applied by Olympus's own pipeline — third-party raw renderers do not always reproduce it exactly. If matching the in-camera look matters, develop the ORF in software that reads it (OM SYSTEM Workspace, Lightroom), export a finished image, then convert that to TIF so the result matches what you saw on the camera.
Your ORF is uploaded over an encrypted connection, rendered on our servers, and deleted automatically a few hours after conversion — no sign-up, no watermark, and your photos are never shared or made public. The main practical limit on a big upload is its size and the time it takes to send, since Olympus raws often run tens of megabytes each. For privacy-sensitive originals, keep the .orf locally and convert only the copies you need.