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PEF to ARW
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PEF stands for Pentax Electronic File, and it is a raw image file format used by Pentax digital cameras. This format stores unprocessed image data directly from the camera's sensor, allowing photographers to maintain a high level of control over image adjustments such as exposure, color balance, and sharpness during post-processing. PEF files provide the potential for higher image quality, as they preserve more information than standard compressed image formats.

ARW is a raw image file format used by Sony digital cameras, capturing unprocessed data from the camera’s sensor. This format provides photographers with extensive flexibility in post-processing, allowing for adjustments to exposure, color balance, and other settings without loss of image quality, but it results in larger file sizes and requires specialized software to view and edit.