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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 CR2?

Canon Raw v2 (CR2) is Canon's second-generation raw image format used by Canon EOS digital cameras for professional photography.

When Should You Use FITS vs CR2?

Use FITS When...

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

Use CR2 When...

Reach for CR2 when your priority is canon photography, professional raw editing — its uncompromising quality ensures every detail is preserved.

FITS vs CR2: Key Differences

  • •The core technical difference: FITS relies on lossless compression whereas CR2 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.
  • •Transparency: N/A
  • •FITS files are typically Varies from 1MB to several GB while CR2 files range 20-50MB per photo depending on camera
  • •Primary audience: FITS is built for astronomy, scientific imaging, research scenarios, while CR2 focuses on canon photography, professional raw editing — pick the format that matches your output requirement.

Advantages of FITS

  • ✓FITS uses lossless compression tailored for Astronomy, scientific imaging, research.
  • ✓FITS is supported natively on virtually every device, browser, and operating system.
  • ✓FITS files are bit-for-bit perfect, preserving every pixel and sample for professional work.
  • ✓FITS integrates seamlessly with all major creative tools and workflows.

Advantages of CR2

  • ✓CR2 uses lossless compression tailored for Canon photography, professional raw editing.
  • ✓CR2 is supported natively on virtually every device, browser, and operating system.
  • ✓CR2 files are bit-for-bit perfect, preserving every pixel and sample for professional work.
  • ✓CR2 integrates seamlessly with all major photo editing tools and workflows.

Common Use Cases for FITS to CR2 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 CR2 Conversion

  • →When converting FITS to CR2, check whether CR2 supports transparency — if not, your transparent areas will be filled with a solid color
  • →Use CR2 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 CR2 formats in our detailed guide.

Troubleshooting FITS to CR2 Conversion

  • !Converting FITS to CR2 gives blurry output → increase the quality setting before conversion
  • !Colors look different in CR2 than FITS → check color profile mismatch (sRGB vs Adobe RGB)
  • !File size changed more than expected → CR2 uses different compression, file size differences of 2-5x are normal
  • !Transparent areas in FITS turned white in CR2 → CR2 may not support transparency

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Convert FITS to CR2 Online - Free & Fast

Convert FITS files to CR2 online for free. High-quality conversion with no registration required.

Image Converter

Upload or enter a URL to convert FITS to CR2 instantly

Click to upload or drag & drop FITS file

or paste from clipboard

.fits,.FITS (max 100MB)

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About FITS and CR2

FITS

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

CR2

CR2 (Canon CR2 raw) - Canon Raw v2, raw image format from Canon digital cameras. Ideal for canon photography, professional raw editing.

Format Comparison

CompressionLossless → Lossless
TransparencySupported
Use CaseConvert from astronomy, scientific imaging, research to canon photography, professional raw editing
File Size~20-50MB per photo depending on camera after conversion

FAQs

Is converting FITS to CR2 free?

Yes, GoConvertFile offers free conversion of FITS to CR2 for files up to 100MB. No registration required.

How long does it take to convert FITS to CR2?

Most FITS to CR2 conversions complete within seconds for standard-sized files. Larger files may take longer depending on the conversion complexity.

What is CR2 best used for?

CR2 is ideal for canon photography, professional raw editing. Canon Raw v2, raw image format from Canon digital cameras

What file size should I expect after converting FITS to CR2?

File size after FITS to CR2 conversion depends on the content complexity and quality settings. Both formats use similar compression approaches so sizes are comparable.

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