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What is ORF?

Olympus Raw Format (ORF) contains raw sensor data from Olympus OM-D, PEN, and other Olympus digital cameras.

What is K25?

Kodak DC25 Raw (K25) is an early digital camera raw format from Kodak's DC series cameras, preserving sensor data.

When Should You Use ORF vs K25?

Use ORF When...

Reach for ORF when your priority is olympus camera raw processing — its uncompromising quality ensures every detail is preserved.

Use K25 When...

Reach for K25 when your priority is vintage kodak digital camera raw processing — its uncompromising quality ensures every detail is preserved.

ORF vs K25: Key Differences

  • •The core technical difference: ORF relies on lossless compression whereas K25 uses lossless compression.
  • •Neither format changes compression philosophy — both are lossless compression — so any size differences are due to encoding efficiency, not a shift in quality approach.
  • •How transparency is handled: K25 supports transparency, so alpha information is preserved during conversion.
  • •Storage footprint: 15-40MB per photo for ORF vs 2-5MB from early digital cameras for K25.
  • •ORF is optimized for olympus camera raw processing while K25 is designed for vintage kodak digital camera raw processing — choose based on your specific workflow needs

Advantages of ORF

  • ✓ORF compresses data using lossless methods, keeping file sizes manageable for Olympus camera raw processing.
  • ✓Industry-wide support means ORF files open anywhere — from legacy systems to the latest devices.
  • ✓Lossless quality makes ORF the gold standard for archival and master copies.
  • ✓From professional software to open-source alternatives, ORF works out of the box.

Advantages of K25

  • ✓K25 applies lossless compression specifically calibrated for Vintage Kodak digital camera raw processing.
  • ✓K25 enjoys broad native support across operating systems, browsers, and creative tools alike.
  • ✓K25 guarantees every bit of the original data survives — no approximations, no shortcuts.
  • ✓You will find K25 support built into virtually every tool that handles Vintage Kodak digital camera raw processing — no plugins or converters needed.

Common Use Cases for ORF to K25 Conversion

  • Brochure and flyer design
  • Newsletter graphics
  • Video thumbnail creation
  • Certificate and badge design
  • Websites and online content
  • Print materials and publications

Industry Applications

Real Estate PhotographyGame DevelopmentScientific VisualizationE-learning ContentWeb DevelopmentGraphic Design

Best Practices for ORF to K25 Conversion

  • →Before converting ORF to K25, decide whether you need maximum quality or smallest file size — this determines which format truly fits
  • →Save a master copy in a lossless format before converting to K25 — you cannot recover detail lost during lossy compression
  • →Check the color profile: ORF images may use a wider gamut than K25 supports, causing a visible shift after conversion
  • →Resize images to the final display dimensions before converting — this avoids unnecessary processing of oversized files
  • →Run a single test conversion first to verify quality meets your standards
  • →Strip unnecessary metadata to reduce file size after conversion

Related Article

JPG vs PNG vs WebP: Which Image Format Should You Use?

Learn more about ORF and K25 formats in our detailed guide.

Troubleshooting ORF to K25 Conversion

  • !Converting ORF to K25 gives blurry output → increase the quality setting before conversion
  • !Colors look different in K25 than ORF → check color profile mismatch (sRGB vs Adobe RGB)
  • !File size changed more than expected → K25 uses different compression, file size differences of 2-5x are normal
  • !Transparent areas in ORF turned white in K25 → K25 may not support transparency

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About ORF and K25

ORF

ORF (Olympus ORF raw) - Olympus Raw Format, raw image from Olympus cameras. Best for olympus camera raw processing.

K25

K25 (Kodak K25 raw) - Kodak DC25 Raw, early raw format from Kodak digital cameras. Ideal for vintage kodak digital camera raw processing.

Format Comparison

CompressionLossless → Lossless
TransparencySupported
Use CaseConvert from olympus camera raw processing to vintage kodak digital camera raw processing
File Size~2-5MB from early digital cameras after conversion

FAQs

Is converting ORF to K25 free?

Yes, GoConvertFile offers free conversion of ORF to K25 for files up to 100MB. No registration required.

How long does it take to convert ORF to K25?

Most ORF to K25 conversions complete within seconds for standard-sized files. Larger files may take longer depending on the conversion complexity.

What is K25 best used for?

K25 is ideal for vintage kodak digital camera raw processing. Kodak DC25 Raw, early raw format from Kodak digital cameras

What file size should I expect after converting ORF to K25?

File size after ORF to K25 conversion depends on the content complexity and quality settings. Both formats use similar compression approaches so sizes are comparable.

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Tune output for this image conversion
80%
Best compressionBest quality