SalvageDiver wrote:
This is simply motion blur, not a fast enough shutter speed for panning effects relative to the motion of the plane.
This effect isn't just on the fins, but throughout the images, especially the details in the cowling. It can be also seen in the details around the wheels and the reflections on the tail.
When you solve for the motion blur, the fin images, you illustrated, become very similar.
Attached is image 2 with and without motion blur
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