1. Home
  2. Image Converter
  3. Convert ORF to DNG

What is ORF?

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

What is DNG?

Adobe Digital Negative (DNG) is an open, universal raw image format designed for long-term archival of camera sensor data.

When Should You Use ORF vs DNG?

Use ORF When...

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

Use DNG When...

Reach for DNG when your priority is raw archival, cross-platform photography workflow — its uncompromising quality ensures every detail is preserved.

ORF vs DNG: Key Differences

  • •The core technical difference: ORF relies on lossless compression whereas DNG 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.
  • •Alpha channel support: DNG lacks transparency support.
  • •Storage footprint: 15-40MB per photo for ORF vs 15-40MB per photo for DNG.
  • •Use case fit: ORF targets olympus camera raw processing and DNG targets raw archival, cross-platform photography workflow — your choice depends on which workflow stage you are serving.

Advantages of ORF

  • ✓At its core, ORF relies on lossless encoding — a design choice that makes it perfect for Olympus camera raw processing.
  • ✓You won't run into compatibility issues with ORF — it's a universal standard across platforms.
  • ✓File size management with ORF: larger files guaranteed to match the original exactly.
  • ✓Every major application in the Olympus camera raw processing space supports ORF natively.

Advantages of DNG

  • ✓At its core, DNG relies on lossless encoding — a design choice that makes it perfect for Raw archival, cross-platform photography workflow.
  • ✓You won't run into compatibility issues with DNG — it's a universal standard across platforms.
  • ✓File size management with DNG: larger files guaranteed to match the original exactly.
  • ✓Every major application in the Raw archival, cross-platform photography workflow space supports DNG natively.

Common Use Cases for ORF to DNG Conversion

  • Newsletter graphics
  • Video thumbnail creation
  • Certificate and badge design
  • Websites and online content
  • Print materials and publications
  • Social media posts and ads

Industry Applications

Game DevelopmentScientific VisualizationE-learning ContentWeb DevelopmentGraphic DesignPhotography

Best Practices for ORF to DNG Conversion

  • →When converting ORF to DNG, check whether DNG supports transparency — if not, your transparent areas will be filled with a solid color
  • →Use DNG for maximum quality archival and ORF for lossless workflows
  • →Optimize images for web to reduce page load times — tools like our converter let you adjust quality settings before conversion
  • →Maintain original aspect ratio to avoid distortion during conversion
  • →Always keep a backup of your original files before converting
  • →Choose the appropriate quality settings for your specific use case

Related Article

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

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

Troubleshooting ORF to DNG Conversion

  • !DNG shows visible compression artifacts → lower the compression level or switch to a lossless variant
  • !The converted DNG image looks washed out → the source ORF likely uses a wider color space than DNG supports
  • !DNG file is much larger than expected → check if the conversion preserved an unnecessarily high resolution
  • !Text in the converted DNG looks fuzzy → text-heavy images benefit from higher quality settings or a different output format

Related Image Converters

All Image Formats

View all Image converters →

More Image tools

Convert to DNG →Convert from ORF →

Related Tools

Compress Images →

Convert ORF to DNG Online - Free & Fast

Convert ORF files to DNG online for free. High-quality conversion with no registration required.

Image Converter

Upload or enter a URL to convert ORF to DNG instantly

Click to upload or drag & drop ORF file

or paste from clipboard

.orf,.ORF (max 100MB)

SSL EncryptedAuto-deleted in 1 hourProcessed securelyNo registration needed

Verifying security check…

About ORF and DNG

ORF

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

DNG

DNG (Adobe DNG raw) - Adobe Digital Negative, universal raw format for archival. Ideal for raw archival, cross-platform photography workflow.

Format Comparison

CompressionLossless → Lossless
TransparencySupported
Use CaseConvert from olympus camera raw processing to raw archival, cross-platform photography workflow
File Size~15-40MB per photo after conversion

FAQs

Is converting ORF to DNG free?

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

How long does it take to convert ORF to DNG?

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

What is DNG best used for?

DNG is ideal for raw archival, cross-platform photography workflow. Adobe Digital Negative, universal raw format for archival

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

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

Related Tools

JPG to DNG
Convert JPG to DNG
JPG to ORF
Convert JPG to ORF
PNG to DNG
Convert PNG to DNG
PNG to ORF
Convert PNG to ORF
View all image converter converters
Tune output for this image conversion
80%
Best compressionBest quality