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CR3 is Canon’s latest raw image file format, providing improved image compression and smaller file sizes compared to its predecessor, CR2, while still retaining the extensive post-processing flexibility characteristic of raw formats. It supports new capabilities such as in-camera digital lens optimizer and c-RAW format options, offering enhanced image quality and performance for Canon camera users. However, due to its newer technology, some older software may require updates to provide full compatibility and support for CR3 files.

HDR (Radiance RGBE image format) is an image file format designed to store images with a broad range of luminance levels, from deep shadows to bright highlights, capturing more detail in both areas than standard digital imaging formats. This format is commonly used in photography and computer graphics to achieve more realistic or artistically enhanced representations of light in images. However, HDR files can be larger in size, and they require compatible software and displays to fully appreciate the enhanced dynamic range.