Kodak DC25 Raw (.k25)
TIFF-based StandardKodak DC25 Raw (K25) is an early consumer digital camera raw format captured by the historic Kodak Digital Science DC25 camera introduced in 1996.
Convert K25 to JPG
Free in-browser K25 to JPG converter. Convert files instantly on your device.
Inspect & Metadata
Operating systems and file analyzers identify K25 files by inspecting the leading binary byte sequence:
Byte-Level Header Signature (Magic Bytes)
Operating systems and file analyzers identify K25 files by inspecting the leading binary byte sequence:
HEX SIGNATURE (OFFSET 0):
49 49 2A 00ASCII REPRESENTATION: II*\0
Standardization: TIFF-based Kodak proprietary
Technical Specifications
| Container Architecture | Primitive TIFF structure with fixed Kodak DC25 sensor geometry |
| Compression | Uncompressed or simple 8-bit sensor quantization |
| Byte Endianness | Little-Endian (Intel byte order) |
| Color Spaces | Kodak DC25 Device RGB |
| Channels & Structure | 1 channel Bayer mosaic (RGGB) |
| Max Dimensions | 493 x 373 (0.18 MP CCD sensor) |
| Transparency | None |
| Streaming & Progressive | Non-streamable fixed binary structure |
Technical Comparison Matrix: K25 vs Competitors
| Technical Attribute | K25 (Current) | CRW | DCS | DNG |
|---|---|---|---|---|
| Resolution | 493 x 373 pixels (0.18 MP) | 3 - 6 MP | 1.5 - 6 MP | Varies (up to 150 MP) |
| Release Year | 1996 | 1998 | 1994 | 2004 |
| Target Audience | Early consumer tech adopters | Prosumer / Enthusiast | Professional Photojournalism | Universal Photography |
| Storage Media | CompactFlash (2 MB) | CompactFlash Type I/II | PCMCIA Hard Drive | SD / CFexpress |
Common Corruption Modes & Hex Recovery Guide
File appears completely black or shows jagged diagonal line artifacts.
Root Cause: Fixed pixel stride calculation mismatch in modern raw decoders.
Recovery: Decode using dcraw -v -D broken.k25 to extract un-interpolated raw pixel values.
Security Analysis & Parser Attack Vectors
Vintage decoders parsing K25 files assume fixed memory limits and lack defensive bounds checks against manipulated sensor dimensions.
Known Attack Vectors
- Buffer overflow when reading unexpected frame dimensions into fixed 493x373 image buffers.
- Integer divide-by-zero on malformed sensor exposure tags.
- Out-of-bounds pointer read during color matrix decoding.
Defensive Best Practices: Transcode vintage K25 files into standard PNG images in an isolated WebAssembly sandbox.
Historical Origins & Milestones
Key Advantages & Pros
- Historic milestone in early consumer digital imaging and electronic photography.
- Direct raw sensor readouts from the mid-1990s digital camera revolution.
- Minimal file footprint (approximately 200 KB per photo).
Technical Limitations & Cons
- Extremely low resolution (493 x 373 pixels, sub-VGA standard).
- Severe obsolescence; almost no modern software natively recognizes the .k25 extension without conversion.
- Fixed sensor geometry leaves no room for metadata expansion.
Interesting Technical Trivia
- The Kodak DC25 was one of the very first consumer digital cameras to feature a color LCD preview display.
- Photos were stored on 2 MB CompactFlash cards that held just 8 or 16 images.
- The DC25 transferred images to Windows 95 PCs over a serial RS-232 cable.
Frequently Asked Technical Questions
What camera created K25 files?
The Kodak Digital Science DC25 camera released in 1996.
How can I convert K25 to JPG today?
Use File2File.app to upload your .k25 file and convert it immediately into modern JPG or PNG format right in your browser.
Why are K25 images so small?
In 1996, consumer CCD image sensors were limited to sub-VGA resolutions to keep costs affordable and fit within 2 MB storage cards.