Filename extension: .cr2
Developed by: Canon
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The CR2 filetype stands as a testament to the enduring legacy of Canon's digital imaging technology. As a raw image format, it encapsulates the complete sensor information captured by Canon cameras, offering photographers the flexibility to post-process images with greater control over final output quality. Canon introduced this file format in the early 2000s alongside its new line of digital SLR cameras, entrusting the CR2 extension to succeed the earlier CRW format. The CR2 format is renowned for its capacity to hold uncompressed and untouched image data, a fact that professional photographers cherish as this preserves the highest level of detail and dynamic range possible.

How CR2 Files Work

At its core, CR2 files are TIFF-based, leveraging this format's versatility and widespread acceptance to store metadata and image information in a highly structured manner. What sets CR2 apart is the proprietary methods used to encode data which necessitates specialized software for access and editing. In addition to raw pixel information, CR2 files embed a full-sized JPEG preview and extensive metadata including camera settings and scene information, making post-processing remarkably efficient.

Software Compatibility

Not every image editor can handle the specifications of the CR2 format. However, a variety of professional-grade software such as Adobe Photoshop, Lightroom, and Canon's own Digital Photo Professional are fully equipped to decode and work with CR2 files. Open-source alternatives like RawTherapee and darktable also offer robust support for the format, extending accessibility to users seeking free software solutions.

Alternative File Formats

While the CR2 format is a stronghold among Canon users, alternative raw formats exist such as Nikon's NEF, Sony's ARW, and the universal DNG format developed by Adobe as a potential cross-brand standard. These alternatives also capture raw sensor data, though each has its own nuances and benefits. DNG, in particular, aims to offer a more open and archival-friendly option for long-term storage and compatibility across different software and camera brands.

Supported converters for CR2 files

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Sorry, there are currently no converters for this file format