Convert CR3 to G3

The CR3 file extension, short for Canon Raw 3, is a digital image file format used by select Canon digital cameras, such as the EOS M50 and EOS R, to store uncompressed or compressed RAW image data. Introduced in 2018, it replaced the older CR2 format and is based on the ISO Base Media File Format, supporting both lossless and lossy compression. CR3 files retain high image quality and detail, making them ideal for professional photo editing in software like Canon Digital Photo Professional and Adobe Lightroom.

The G3 file extension refers to the CCITT Group 3 Fax Image, a standardized format developed by the Consultative Committee for International Telegraphy and Telephony (CCITT), now known as ITU-T. This format was created to efficiently compress black-and-white fax documents for transmission over telephone lines. It employs a method called Modified Huffman Coding for data compression, enabling reduced transmission time and bandwidth usage. G3 was widely adopted in the 1980s and 1990s as the primary standard for fax transmissions, ensuring compatibility across different fax machines and systems.