NEF is an acronym for Nikon Electronic Format. Files that contain the .nef file extension are normally used by Nikon digital SLR cameras.
The files that are captured by the Nikon cameras are raw image files. These files can then be transferred from the Nikon camera to a user's computer when a user wants to edit the images that he or she has taken with the camera.
The NEF file contains the image data in the exact same way that it was captured by the CCD detector that is located inside the Nikon camera. NEF files are uncompressed, editable files that can be adjusted with image editing software.
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