MMegaConvert

Convert CR2 to EXR

Free online CR2 to EXR converter. No signup required.

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Max file size: 100 MB

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How to Convert CR2 to EXR

Follow these simple steps to convert your file in seconds.

  1. 1

    Upload your .cr2 file

    Drag and drop your .cr2 file into the upload area, or click "Browse" to select it from your device. Your file is uploaded securely and processed on our servers.

  2. 2

    Click "Convert to EXR"

    Once your file is uploaded, press the convert button to start the CR2 to EXR conversion process.

  3. 3

    Wait for the conversion to complete

    The conversion usually takes just a few seconds. You can see the progress in real time while your file is being processed.

  4. 4

    Download your converted .exr file

    When the conversion is finished, click the download button to save your new .exr file. The file is ready to use immediately.

Understanding CR2 and EXR Formats

Learn about the source and target file formats to understand what happens during conversion.

Source Format

Canon Raw Image

image/x-canon-cr2

CR2 (Canon Raw version 2) is Canon's proprietary raw image format used by Canon DSLR and mirrorless cameras. It stores unprocessed sensor data with full bit depth, white balance, and exposure settings as metadata rather than baked-in adjustments. CR2 files provide maximum flexibility for post-processing, preserving all the data captured by the camera sensor.

Advantages

  • Preserves complete unprocessed sensor data for maximum editing flexibility
  • Widely supported by major photo editing software including Lightroom and Capture One
  • Contains extensive EXIF metadata including camera settings and lens information

Limitations

  • Proprietary format controlled by Canon with no public specification
  • Large file sizes, typically 20-30 MB per image for modern cameras
  • Requires specialized raw processing software to view and edit

Common Uses

  • Professional and enthusiast photography with Canon cameras
  • Non-destructive photo editing and raw development
  • High-quality image archival preserving maximum sensor data

Target Format

OpenEXR Image

image/x-exr

OpenEXR is a high dynamic range raster image format developed by Industrial Light & Magic for use in visual effects and motion picture production. It supports 16-bit and 32-bit floating-point pixels, multiple compression methods, arbitrary image channels, and multi-part files. OpenEXR is the industry standard for storing intermediate and final rendered frames in VFX pipelines.

Advantages

  • Industry-standard 16-bit and 32-bit floating-point precision for VFX work
  • Supports an arbitrary number of named channels and deep image data
  • Multiple lossless and lossy compression options including PIZ and DWAA

Limitations

  • Large file sizes even with compression, especially for 32-bit data
  • Not supported by web browsers or most consumer image viewers
  • Complex format specification requires specialized libraries to read and write

Common Uses

  • Visual effects compositing and intermediate renders in film production
  • 3D rendering output for lighting and shading passes
  • HDR image storage for professional color grading and post-production

Frequently Asked Questions

Common questions about converting CR2 to EXR.

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