CR2 to RB Converter

CR2 (Canon RAW version 2) is Canon's second-generation proprietary RAW image format, introduced in 2004 with the EOS-1D Mark II and used across Canon's DSLR lineup until the transition to CR3 beginning in 2018. CR2 files use a TIFF-based container that stores the raw sensor data compressed with a lossless variant of JPEG encoding (Huffman-coded prediction residuals), keeping file sizes manageable while preserving every bit of the original capture. Each CR2 file contains multiple image sections: a small thumbnail, a mid-size preview JPEG suitable for quick review, and the full-resolution RAW data at 14-bit depth on most bodies. The format records extensive shooting metadata including Canon's proprietary tags for lens model, autofocus point selection, Picture Style settings, dust-delete data from the sensor cleaning reference shot, and per-body calibration information. One advantage is the vast software ecosystem — CR2 is one of the most widely supported RAW formats in existence, handled natively by Adobe Lightroom, Capture One, DxO, RawTherapee, darktable, and dozens of other converters and viewers, owing to Canon's dominant market share during the DSLR era. Reliable archival longevity is another key strength: the TIFF-based structure and well-documented layout make CR2 files relatively straightforward to parse even with custom tools, and the format's ubiquity means archival support will persist for decades.