Calculating Distortion While Solving

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‌Calculating Distortion While Solving

If your shot lacks straight lines to use as a reference, turn on the Calculate Distortion checkbox (quadratic only) on the lens panel and it will be computed during 3- D solving. For more complex distortion types, open the Advanced Lens panel by clicking the more button next to Calc. Distortion.

WARNING : You must have a large number of trackers in the scene and significant camera motion. Without these, distortion cannot be distinguished from the effect of camera motion, and the resulting solution will be theoretically correct, but practically meaningless.

Usually you should solve the shot without calculating distortion (perhaps just a guess), then switch to Refine mode and turn on Calculate Distortion. When calculating distortion, significantly more trackers will be necessary to distinguish between distortion, zoom, and camera/object motion.

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