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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 FITS?

Flexible Image Transport System (FITS) is a scientific data format used primarily in astronomy for storing and transmitting images and datasets.

When Should You Use ORF vs FITS?

Use ORF When...

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

Use FITS When...

Reach for FITS when your priority is astronomy, scientific imaging, research — its uncompromising quality ensures every detail is preserved.

ORF vs FITS: Key Differences

  • •ORF and FITS diverge on compression: lossless compression for the source, lossless compression for the target.
  • •Both formats share lossless compression, so quality behavior is similar across the two — file size differences come from algorithm efficiency rather than compression philosophy.
  • •How transparency is handled: FITS supports transparency, so alpha information is preserved during conversion.
  • •File sizes: ORF files typically range 15-40MB per photo and FITS files Varies from 1MB to several GB.
  • •Use case fit: ORF targets olympus camera raw processing and FITS targets astronomy, scientific imaging, research — 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 FITS

  • ✓FITS applies lossless compression specifically calibrated for Astronomy, scientific imaging, research.
  • ✓FITS enjoys broad native support across operating systems, browsers, and creative tools alike.
  • ✓FITS guarantees every bit of the original data survives — no approximations, no shortcuts.
  • ✓You will find FITS support built into virtually every tool that handles Astronomy, scientific imaging, research — no plugins or converters needed.

Common Use Cases for ORF to FITS Conversion

  • Graphic design projects
  • E-commerce product images
  • Email marketing campaigns
  • Presentation graphics
  • Blog and article illustrations
  • Mobile app UI assets

Industry Applications

Print PublishingE-commerceDigital ArtUI/UX DesignAdvertisingBrand Management

Best Practices for ORF to FITS Conversion

  • →When converting ORF to FITS, check whether FITS supports transparency — if not, your transparent areas will be filled with a solid color
  • →Use FITS 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 FITS formats in our detailed guide.

Troubleshooting ORF to FITS Conversion

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

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Convert ORF to FITS Online - Free & Fast

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

Image Converter

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About ORF and FITS

ORF

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

FITS

FITS (FITS data) - Flexible Image Transport System, scientific data format. Ideal for astronomy, scientific imaging, research.

Format Comparison

CompressionLossless → Lossless
TransparencySupported
Use CaseConvert from olympus camera raw processing to astronomy, scientific imaging, research
File Size~Varies from 1MB to several GB after conversion

FAQs

Is converting ORF to FITS free?

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

How long does it take to convert ORF to FITS?

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

What is FITS best used for?

FITS is ideal for astronomy, scientific imaging, research. Flexible Image Transport System, scientific data format

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

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

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