Convert NEF to CALS

The NEF file extension stands for Nikon Electronic Format, a proprietary RAW image file format used by Nikon digital cameras. These files capture all image data as seen by the camera sensor, providing greater flexibility for post-processing and higher image quality compared to compressed formats. NEF files are essential for professional photographers and IT specialists in photo editing due to their uncompressed nature, allowing precise adjustments in color, exposure, and detail retention. Nikon introduced this format to enhance image fidelity and editing capabilities, maintaining a pivotal role in digital photography since its inception.

The CALS (Continuous Acquisition and Life-cycle Support) Type 1 Image file format, developed by the United States Department of Defense in the mid-1980s, is a standard for storing raster (bit-mapped) image data, typically black-and-white. It ensures efficient data interchange and retention of orientation metadata. The format supports both uncompressed and compressed (using CCITT Group 4 compression) images. This standard was part of the broader CALS initiative aimed at improving electronic publishing and data management within the federal government.