Sony SRF vs ARW: Early Cyber-shot/Alpha RAW vs Modern Sony Raw Format
Compare Sony's early SRF format with modern Sony ARW: sensor color filters, embedded preview streams, and browser raw extraction.
Sony SRF (Sony Raw Format) was used in early bridge cameras and initial Alpha DSLRs (e.g. DSC-R1, DSLR-A100) before Sony standardized on Sony Alpha Raw (ARW). Both wrap raw Bayer sensor data in TIFF IFD containers alongside high-resolution preview streams.
| FEATURE | SRF | ARW |
|---|---|---|
| Primary Cameras | Sony Cyber-shot DSC-R1, DSLR-A100 | Sony Alpha a7, a9, a1, a6000 series |
| Container Architecture | TIFF 6.0 with Sony IFD tags | TIFF/EP with Sony MakerNotes |
| Bit Depth | 12-bit raw sensor data | 14-bit lossless or uncompressed raw |
| Embedded Preview | JPEGInterchangeFormat stream | Multi-resolution JPEG preview streams |
| Current Software Support | Legacy / specialized raw converters | Every modern photo editing tool |
- Preserves historic original photographs from early Sony digital cameras
- Uncompressed or lightly packed sensor color filter array data
- Standard TIFF-compatible container with embedded preview JPEGs
- Direct insight into early CCD and CMOS sensor evolution
- Modern Sony digital camera standard across all Alpha mirrorless bodies
- Advanced 14-bit uncompressed and lossless compressed raw options
- Universal support in Lightroom, Capture One, and Apple Photos
- Embedded lens aberration correction and dynamic range optimization profiles
ARW is the reigning standard for Sony Alpha mirrorless photographers, but millions of precious family and archival photographs remain stored in .srf files. convrtr extracts lossless embedded preview frames from SRF files to PNG directly in your browser.
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