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What is FITS?

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

What is ORF?

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

When Should You Use FITS vs ORF?

Use FITS When...

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

Use ORF When...

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

FITS vs ORF: Key Differences

  • •FITS uses lossless compression while ORF uses lossless compression — both take the same approach to file size management.
  • •Since both FITS and ORF use lossless compression, the quality characteristics are comparable — differences in file size come down to how efficiently each format implements compression.
  • •How transparency is handled: ORF supports transparency, so alpha information is preserved during conversion.
  • •Storage footprint: Varies from 1MB to several GB for FITS vs 15-40MB per photo for ORF.
  • •FITS is optimized for astronomy, scientific imaging, research while ORF is designed for olympus camera raw processing — choose based on your specific workflow needs

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.

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.

Common Use Cases for FITS to ORF Conversion

  • Blog and article illustrations
  • Mobile app UI assets
  • Product photography for marketplaces
  • Digital art portfolios
  • Brochure and flyer design
  • Newsletter graphics

Industry Applications

AdvertisingBrand ManagementContent ManagementMedical ImagingReal Estate PhotographyGame Development

Best Practices for FITS to ORF Conversion

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

Troubleshooting FITS to ORF Conversion

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

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Convert FITS to ORF Online - Free & Fast

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

Image Converter

Upload or enter a URL to convert FITS to ORF instantly

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About FITS and ORF

FITS

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

ORF

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

Format Comparison

CompressionLossless → Lossless
TransparencySupported
Use CaseConvert from astronomy, scientific imaging, research to olympus camera raw processing
File Size~15-40MB per photo after conversion

FAQs

Is converting FITS to ORF free?

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

How long does it take to convert FITS to ORF?

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

What is ORF best used for?

ORF is ideal for olympus camera raw processing. Olympus Raw Format, raw image from Olympus cameras

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

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

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