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NEF to RAW
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NEF stands for Nikon Electronic Format and is Nikon's proprietary raw image file format. It stores image data exactly as it was captured by the camera’s sensor, preserving the maximum amount of information and allowing for extensive post-processing flexibility in terms of exposure, color balance, and sharpness adjustments.

The RAW image file format is a generic term for a variety of image formats used by different digital camera manufacturers. RAW files store unprocessed data from the camera's sensor, providing photographers with the ability to manipulate settings like exposure, white balance, and sharpness during post-processing, which can result in higher image quality. Unlike JPEG and other compressed formats, RAW files retain a much broader range of color and luminance values, offering more flexibility for editing but also resulting in larger file sizes.