A CR2 file is a raw image file format captured by Canon digital cameras. Like most Canon formats, a CR2 file is based on TIFF specifications. Therefore, CR2 files are large, uncompressed, and offer high-quality images. Today, just a handful of programs such as UFRaw and IrfanView provide native support for CR2 files. Microsoft Windows users can also natively view CR2 files, although after installing Canon RAW Codec Software or Camera Codec Pack.
JPG, sometimes called JPEG, is a standard image format developed by the Joint Photographic Experts Group. JPG uses a high degree of lossy compression to give it a small file size while sacrificing the overall image quality. It can achieve up to an impressive 10:1 compression algorithm. Today, it’s the most widely used image format, thanks to its seamless compatibility with the World Wide Web and most image viewing and editing apps.
Adobe Photoshop Adobe Photoshop Lightroom Apple Preview