CR2 to SUN — Format Comparison & Online Converter
Fast, instant CR2 (CANON) to SUN conversion. No signup required. Just drop your .cr2 file and get .sun in seconds.
Batch Settings
About CR2 (CANON) to SUN Conversion
CR2 (introduced 2004) and SUN are both image formats, but they differ in important ways. CR2 is Canon's RAW photo format containing unprocessed sensor data for maximum editing flexibility. SUN is a widely used file format.
When you convert CR2 to SUN, the goal is to convert between formats quickly. Converting CR2 to SUN maintains high quality with CocoConvert's optimised encoder settings. Understanding these technical differences helps you choose the right format for your workflow.
Your CR2 file is decoded and re-encoded as SUN. The conversion involves 4 steps: (1) your cr2 file is uploaded and validated, (2) the file is decoded (parsed into its raw data), (3) the data is re-encoded in sun format, (4) the converted file is ready for download.
CocoConvert's converter handles the entire pipeline server-side using FFmpeg, Sharp, and qpdf — battle-tested libraries used by streaming platforms and enterprise tools. Files are encrypted in transit and deleted within 24 hours.
This conversion is ideal when you When you need a SUN file. For the opposite direction, CocoConvert also supports SUN to CR2 conversion.
How to Convert CR2 (CANON) to SUN
- 1
Upload .cr2 file
Select your CR2 file by dragging it to the upload zone or using the file picker. Batch upload is available for multiple files.
- 2
Choose .sun
Set SUN as the output format. The converter uses optimal settings based on the CR2→SUN conversion profile.
- 3
Convert
The server-side engine decodes your CR2 file and re-encodes it as SUN. Processing time depends on file size and complexity.
- 4
Download result
Grab your converted .sun file. Multiple output files can be downloaded together.
What Happens When You Convert CR2 (CANON) to SUN
Your CR2 file is decoded and re-encoded as SUN.
Your CR2 file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in SUN format
The converted file is ready for download
Format Comparison
CR2 (Canon)
.cr2 file
| Extension | .cr2 |
| MIME Type | image/x-canon-cr2 |
| Category | Image |
SUN
.sun file
| Extension | .sun |
| MIME Type | image/x-sun-raster |
| Category | Image |
Should You Convert CR2 (CANON) to SUN?
When to Convert
- ✓When you need a SUN file
Frequently Asked Questions
What is the difference between CR2 and SUN?
CR2 is Canon's RAW photo format containing unprocessed sensor data for maximum editing flexibility. SUN is a widely used file format.
Does CR2 to SUN conversion affect quality?
Converting CR2 to SUN maintains high quality with CocoConvert's optimised encoder settings.
Which format has better compression, CR2 or SUN?
CR2 uses lossless compression. SUN is widely supported. The better choice depends on whether you prioritize file size or quality.
How long does CR2 to SUN conversion take?
Most conversions finish in seconds. Larger files or complex image content may take 10–30 seconds. CocoConvert processes files in parallel for batch jobs.
Is CR2 or SUN better for long-term storage?
CR2 is better for archival since it's lossless.
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