CR2 vs FITS — Comparison & Free Converter
Fast, instant CR2 (CANON) to FITS conversion. No signup required. Just drop your .cr2 file and get .fits in seconds.
Batch Settings
キヤノン製カメラで撮影されたCR2形式の美しい写真データ。その繊細な色彩や豊かな階調を、天文学や科学分野で広く用いられるFITS形式へと変換するお手伝いをいたします。天体観測データの解析や、学術研究における画像処理など、専門的な用途でCR2画像を活用したい際に、この変換ツールが皆様のお役に立てれば幸いです。ピクセルごとの詳細な情報保持が求められるFITS形式への変換は、大切なデータを正確に、そして確実に次世代へと引き継ぐための重要なステップです。直感的な操作で、高品質な変換を体験してください。
- 天文台での観測データ共有
- 研究機関における画像解析
- デジタルアーカイブでの長期保存
日本の研究機関や天文台では、観測装置からのデータ形式としてFITSが標準的に用いられることが多く、CR2からの変換ニーズは専門分野で特に顕著です。変換後のデータは、縦書き表示される学術論文の図版としても利用されます。
About CR2 (CANON) to FITS Conversion
CR2 or FITS — which format should you use? The answer depends on your needs. Here's a quick breakdown.
CR2 is Canon's RAW photo format containing unprocessed sensor data for maximum editing flexibility. It has limited platform support. FITS is a widely used file format. It has common platform support.
So when should you convert CR2 to FITS? This conversion is ideal when you When you need a FITS file. This conversion helps you convert between formats quickly.
Converting CR2 to FITS maintains high quality with CocoConvert's optimised encoder settings.
If you've decided FITS is the right choice, CocoConvert makes the conversion effortless. Upload your .cr2 file, pick FITS, and click Convert — done in seconds. The converter runs on secure servers in Germany, powered by FFmpeg, Sharp, and qpdf. Files are encrypted via TLS and erased within 24 hours.
Free tier: 5 files/hour, 250 MB each. Pro: 100 files/hour, 5 GB each. Works in every modern browser on desktop and mobile.
How to Convert CR2 (CANON) to FITS
- 1
Choose your CR2 file
Upload your .cr2 file using drag-and-drop or the file browser. Batch mode lets you add multiple files.
- 2
Set format to FITS
Select .fits from the output options. The converter applies optimal quality settings automatically.
- 3
Run the conversion
Click Convert. Server-side processing means your device stays fast — even for large image files.
- 4
Get your FITS file
Download your converted file instantly. Batch downloads are available as a zip archive.
What Happens When You Convert CR2 (CANON) to FITS
Your CR2 file is decoded and re-encoded as FITS.
Your CR2 file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in FITS format
The converted file is ready for download
Format Comparison
CR2 (Canon)
.cr2 file
| Extension | .cr2 |
| MIME Type | image/x-canon-cr2 |
| Category | Image |
FITS
.fits file
| Extension | .fits |
| MIME Type | image/fits |
| Category | Image |
Should You Convert CR2 (CANON) to FITS?
When to Convert
- ✓When you need a FITS file
Frequently Asked Questions
Should I use CR2 or FITS?
It depends on your goal. CR2 preserves full quality. FITS preserves full quality. Choose based on whether file size or quality matters more for your use case.
Is FITS higher quality than CR2?
Not necessarily. Converting CR2 to FITS maintains high quality with CocoConvert's optimised encoder settings. Quality depends on the compression type and settings, not just the format name.
Can I convert CR2 to FITS on Mac and Windows?
Yes. CocoConvert is a web-based tool that works in all modern browsers — Chrome, Safari, Firefox, Edge — on any operating system including macOS, Windows, Linux, iOS, and Android.
Is CocoConvert free for CR2 to FITS?
Yes. Free users get 5 conversions per hour (250 MB each). Pro subscribers unlock 100 files per hour, 5 GB per file, and priority processing.
What tools does CocoConvert use for CR2 to FITS?
CocoConvert uses FFmpeg for audio/video, Sharp for images, and qpdf for documents — the same open-source libraries used by Netflix, YouTube, and major enterprise platforms.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.