Incorrect calculation of focal length about fspy HOT 3 OPEN

Just a note, it's not mentioning a focal length of 51.6 mm but a field of view of 51.6 degrees. The field of view is affected by the sensor size, so to correlate it with the focal length we should also know the size of the sensor.

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Just a note, it's not mentioning a focal length of 51.6 mm but a field of view of 51.6 degrees. The field of view is affected by the sensor size, so to correlate it with the focal length we should also know the size of the sensor.

Ok with focal length, but this image is captured with normal camera so it should calculate rotation of the camera instead of calculating Tilt and shift.

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I think the tilt/shift comes from your setting for the principal point, which is shifted to the right and slightly to the top.

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