Dynapik offers a free online tool to change image types - no need to download anything. It's quick and easy to use. You can change your RAF images to DPX format. This tool works for both professionals and casual users. Convert your images to DPX in seconds.
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Fujifilm RAW
The unique raw format for Fujifilm's X-Trans sensors.
RAF is the raw image format used by Fujifilm cameras. While it serves the same purpose as other raw formats, RAF files from Fuji's X-Series cameras are special because they contain data from the unique 'X-Trans' sensor array. Unlike standard sensors that use a Bayer pattern (2x2 grid), X-Trans uses a complex 6x6 pixel grid to reduce moiré without an optical low-pass filter. This means RAF files require specialized demosaicing algorithms to process correctly, making software choice more critical for Fuji users than for any other brand.
RAF files store the raw sensor data, a JPEG preview, and metadata. Fuji offers 'Uncompressed' and 'Lossless Compressed' options. The Lossless Compressed option is highly efficient, reducing file sizes significantly with no penalty. Because of the X-Trans pattern, RAF files can sometimes exhibit 'worm' artifacts when sharpened aggressively in Adobe Lightroom. This has led many Fuji users to prefer Capture One or Iridient Developer, which handle the X-Trans demosaicing better.
Fuji has used the RAF extension for decades, from their early FinePix DSLRs to the modern GFX medium format monsters. The format gained prominence with the release of the X-Pro1 in 2012, which introduced the X-Trans sensor.
DPX (Digital Picture Exchange)
The industry standard for digital intermediate and visual effects work in film.
Digital Picture Exchange (DPX) is a raster image format used primarily in the motion picture industry for visual effects (VFX) and Digital Intermediate (DI) work. It is an ANSI/SMPTE standard (SMPTE 268M-2003) designed to represent the density of film scans without loss of quality. Unlike consumer formats, DPX is usually uncompressed and stores color information in a 'logarithmic' (Log) format to preserve the full dynamic range of motion picture film. A single second of 4K movie footage in DPX format can consume enormous amounts of storage (hundreds of megabytes), making it strictly a production format, not one for distribution.
A DPX file starts with a 'Generic Image Header' (magic number: SDPX) containing core details like file size and image orientation. This is followed by 'Industry Specific Headers' for Motion Picture or Television data (timecodes, frame rates). Finally, the 'Image Data' block contains the raw pixel values. DPX supports a wide variety of bit depths, but 10-bit Log RGB is the most common industry standard. It packs these 10-bit values tightly into 32-bit words (10+10+10+2 padding) for efficient processing. The logarithmic encoding mimics the human eye's response to light and the physical characteristics of film stock.
DPX is the direct successor to Kodak's Cineon (.cin) format, which was developed in the early 1990s for the first digital film scanners. As the industry moved towards digital workflows, SMPTE (Society of Motion Picture and Television Engineers) standardized Cineon into DPX to ensure compatibility between different vendors' scanners, printers, and software.
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