Why are tangential distortion co-efficients always 0

[wreuven]

When doing camera calibration in Agisoft, the tangential co-efficients p1 and p2 shown under "camera calibration" are always 0.

Why is this and does this effect the final model quality?

thanks,

Reuben

[Alexey Pasumansky]

Hello Reuben,

In the version 1.1 and older tangential coefficients were refined only during optimization. Starting from the version 1.2 they are also included in autocalibration process during Align Photos stage.