The ORF file extension represents the raw image format used by Olympus digital cameras. Raw image formats, unlike JPEGs, contain minimally processed data directly from the camera's sensor. This means that the ORF file retains a much wider dynamic range and color gamut than a JPEG, allowing for greater flexibility in post-processing. The ORF file stores all the information captured by the camera's sensor, including metadata such as camera settings, date, and time. This makes it ideal for photographers who want maximum control over the final image. Because it's unprocessed, an ORF file typically requires specialized software to view and edit. The advantage of using ORF is the ability to make significant adjustments to exposure, white balance, and other parameters without degrading the image quality, which is a common issue with JPEG files. The file size is also significantly larger than a JPEG due to the amount of data stored.