It’s often used to preview the image on the camera’s LCD screen, and can be used for initial previewing in RAW processing software whilst the actual RAW file is being processed and thumbnailed in the background. Embedded JPEG: a JPEG is often embedded into the RAW file, and may be full or partial resolution.Sensor image data: this is the scene information captured by the sensor, and is used to produce the final image we see on screen.camera settings like ISO, shutter speed, aperture, and sensor metadata, which is used to aid the software RAW processing. Metadata: this includes both camera metadata, e.g.Although interesting, it’s not our main concern for now. Contains information such as identifiers, byte-ordering etc. A header: common in most file formats.Despite this variance, these RAW files all follow a typical structure: RW2 (Panasonic) just to name a few examples. Most camera manufacturers use their own proprietary RAW format, and they can have various filename extensions such as. Let’s start with what’s in a typical RAW file. But why does it offer us these benefits? What is actual RAW data? And why can you dramatically alter the white balance so easily, pull highlights and push shadows, and perform other numerous tweaks that are more successful with RAW compared to JPEG? Let’s have a look. ![]() Our general understanding is that it behaves a bit like a ‘digital negative’, rewarding us with more image ‘information’ and more flexibility during editing. If you’re a photographer, you’ve no doubt come across RAW. What’s actually in a RAW file, and how does software convert it to something tangible that we can view and edit? Let’s find out.
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