It is a proprietary format that stores uncompressed image data captured directly by the camera sensor. This ensures optimal image quality and exceptional color fidelity. CRW files contain detailed information about exposure, white balance, and other camera settings, allowing photographers to make precise, custom edits during post-processing. Additionally, CRW files are typically large in size due to the. lack of compression, making them ideal for applications requiring high image quality, such as professional photography and high-resolution printing.