Convert X3F to ODD — Free Online Converter
Convert Sigma/Foveon RAW (.x3f) to One Document Does-it-all (.odd) online for free. Fast, secure image conversion with no watermarks or registration....
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Upload your .x3f file by dragging it into the upload area or clicking to browse.
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Click Convert and download your .odd file when it's ready.
About X3F to ODD Conversion
X3F is Sigma's proprietary RAW format for cameras using the Foveon direct image sensor, including the DP Merrill series, SD1 Merrill, and dp Quattro series. The Foveon sensor captures full color at every pixel location (three stacked layers instead of a color filter array), producing uniquely sharp images with no demosaicing artifacts. ODD is LibreOffice Draw's format for annotated documents.
Converting X3F to ODD decodes the Foveon sensor data and embeds the resulting photograph into a Draw document. Foveon captures have a distinctive per-pixel sharpness that is particularly well-suited for detailed annotation work where fine image details need labeling.
Why Convert X3F to ODD?
Sigma cameras using the Foveon sensor have a dedicated following among photographers who value the unique image quality, but X3F support is extremely limited — Sigma Photo Pro is virtually the only fully compatible software. Converting to ODD preserves Foveon photography in an open format while providing annotation tools.
The Foveon sensor's per-pixel sharpness makes annotated X3F captures exceptionally suitable for technical documentation where fine detail resolution matters — product inspection, textile analysis, biological specimen documentation.
Common Use Cases
- Annotate Foveon's uniquely sharp captures with fine-detail labels for technical documentation
- Create documented collections of Sigma Foveon photography in an accessible open format
- Build annotated reference images leveraging Foveon's per-pixel sharpness for quality inspection
- Preserve Sigma DP and SD series photography against X3F format obsolescence
How It Works
The conversion reads the X3F container and decodes the three-layer Foveon sensor data. Unlike Bayer-pattern sensors that require demosaicing (interpolation), the Foveon provides full RGB at each pixel position. Color correction and white balance from Sigma's embedded metadata are applied. The resulting image is embedded into an ODD XML package.
Quality & Performance
Foveon captures are uniquely sharp at the pixel level due to the absence of Bayer demosaicing interpolation. This per-pixel clarity is fully preserved in the ODD conversion. Color rendering depends on Sigma Photo Pro's processing parameters embedded in the X3F. Resolution is 15-29 MP effective (depending on camera generation and how Foveon pixel count is measured).
Device Compatibility
| Device | X3F | ODD |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser | No | No |
Tips for Best Results
- 1Foveon's per-pixel sharpness makes X3F-to-ODD ideal for technical documentation requiring fine detail annotation
- 2Convert X3F archives before Sigma Photo Pro becomes completely unsupported on modern operating systems
- 3Use Draw's zoom capability to annotate fine details that are uniquely visible in Foveon captures
- 4Export annotated Foveon documentation to PDF for sharing with photography communities and sensor technology researchers
X3F to ODD conversion preserves Sigma Foveon photography's unique per-pixel sharpness in annotated open-standard documents, protecting these distinctive captures from X3F format abandonment.