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Cromatic Aberration


OHW

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I wonder if it's a de-Bayering artifact similar to Moire? The size of the smallest branches is probably very close to the maximum resolution of the sensor.

One way to tell is to try different software to process the RAW files. Some open-source RAW developers let you use different de-Bayering algorithms without switching software. I do this sometimes when copying black and white negatives, when the frequency of the grain is similar to the camera's pixel pitch.

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