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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 RW2?

Panasonic Raw v2 (RW2) contains raw sensor data from Panasonic Lumix digital cameras.

When Should You Use FITS vs RW2?

Use FITS When...

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

Use RW2 When...

Reach for RW2 when your priority is panasonic/lumix camera raw editing — its uncompromising quality ensures every detail is preserved.

FITS vs RW2: Key Differences

  • •The core technical difference: FITS relies on lossless compression whereas RW2 uses lossless compression.
  • •Both formats share lossless compression, so quality behavior is similar across the two — file size differences come from algorithm efficiency rather than compression philosophy.
  • •Transparency: N/A
  • •File sizes: FITS files typically range Varies from 1MB to several GB and RW2 files 20-45MB per photo.
  • •Use case fit: FITS targets astronomy, scientific imaging, research and RW2 targets panasonic/lumix camera raw editing — your choice depends on which workflow stage you are serving.

Advantages of FITS

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

Advantages of RW2

  • ✓The lossless nature of RW2 means file sizes stay reasonable while handling Panasonic/Lumix camera raw editing efficiently.
  • ✓From mobile devices to enterprise servers, RW2 is recognized and supported everywhere.
  • ✓The trade-off for RW2's perfection is larger files — but for archival work, it is worth every megabyte.
  • ✓RW2 is a first-class citizen in all major software ecosystems, from creative suites to development environments.

Common Use Cases for FITS to RW2 Conversion

  • Video thumbnail creation
  • Certificate and badge design
  • Websites and online content
  • Print materials and publications
  • Social media posts and ads
  • Digital photography and editing

Industry Applications

Scientific VisualizationE-learning ContentWeb DevelopmentGraphic DesignPhotographySocial Media Marketing

Best Practices for FITS to RW2 Conversion

  • →When converting FITS to RW2, check whether RW2 supports transparency — if not, your transparent areas will be filled with a solid color
  • →Use RW2 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 RW2 formats in our detailed guide.

Troubleshooting FITS to RW2 Conversion

  • !Converting FITS to RW2 gives blurry output → increase the quality setting before conversion
  • !Colors look different in RW2 than FITS → check color profile mismatch (sRGB vs Adobe RGB)
  • !File size changed more than expected → RW2 uses different compression, file size differences of 2-5x are normal
  • !Transparent areas in FITS turned white in RW2 → RW2 may not support transparency

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Convert FITS to RW2 Online - Free & Fast

Convert FITS files to RW2 online for free. High-quality conversion with no registration required.

Image Converter

Upload or enter a URL to convert FITS to RW2 instantly

Click to upload or drag & drop FITS file

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.fits,.FITS (max 100MB)

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About FITS and RW2

FITS

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

RW2

RW2 (Panasonic RW2 raw) - Panasonic Raw v2, raw image from Lumix cameras. Ideal for panasonic/lumix camera raw editing.

Format Comparison

CompressionLossless → Lossless
TransparencySupported
Use CaseConvert from astronomy, scientific imaging, research to panasonic/lumix camera raw editing
File Size~20-45MB per photo after conversion

FAQs

Is converting FITS to RW2 free?

Yes, GoConvertFile offers free conversion of FITS to RW2 for files up to 100MB. No registration required.

How long does it take to convert FITS to RW2?

Most FITS to RW2 conversions complete within seconds for standard-sized files. Larger files may take longer depending on the conversion complexity.

What is RW2 best used for?

RW2 is ideal for panasonic/lumix camera raw editing. Panasonic Raw v2, raw image from Lumix cameras

What file size should I expect after converting FITS to RW2?

File size after FITS to RW2 conversion depends on the content complexity and quality settings. Both formats use similar compression approaches so sizes are comparable.

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