Camera RAW: What, Why and Should I Bother?

Camera RAW: What, Why and Should I Bother?

Monday 26th October members and guests welcomed back Professor Terry Hewitt. His work specialism is scientific computing and supercomputers but he is also passionate about photography. Tonights presentation over zoom was titled – Camera RAW: What, Why and Should I Bother? This talk will explain Camera RAW and Adobe DNG covering what they mean, their advantages and disadvantages, workflow, and non-destructive image editing. It will demonstrate workflow with Adobe Camera RAW in Bridge, Photoshop and Lightroom.

The first part of the evening was a lot of technical content presented on a number of clear and easy to understand slides all aimed at helping people understand what is meant by RAW, how the camera processors the data captured by the sensor and produces either a JPG image, RAW image or both.

As the evening progressed Terry was able to demonstrate how RAW images are processed non-destructively, the original data is never edited or destroyed because the clever use of XMP or sidecar files allows the edits made in the RAW processor, whether it is Adobe Camera Raw or Lightroom, to be sent into Photoshop so that the data is correctly displayed.

During the second part of the evening Terry used Lightroom to demonstrate a number of the key controls available in the RAW data processor to adjust things like white balance, brightness, contract, lift the shadows or reduce the whites. Many of these can either be applied globally to the whole image or locally using a selection of local adjustment tools.

To close out an excellent and engaging evening Terry cycled back to the first few slides to remind us how the data captured by the sensor makes it way from the camera through a RAW data processor and into our final image and to remind us of the key theme of the evening which was Camera RAW: What, Why and Should I Bother?

The slides from the evening will be distributed to members directly. Terry is happy for you to contact him directly should you have any questions, his email address is on the slides.

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