Convert CR3 to FITS

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 FITS (Flexible Image Transport System) file extension is widely utilized in the field of astronomy for storing, transmitting, and manipulating scientific data and images. Originating in the late 1970s, FITS was developed by NASA and the International Astronomical Union (IAU) to standardize the format for astronomical data. Its primary use is to archive astronomical images, spectral data, and other multidimensional data arrays, enabling efficient data interchange among scientists and astronomers. FITS files are known for their ability to store metadata and large datasets, making them essential for detailed scientific analysis and long-term preservation in research environments.