Camera calibration : When to use ?

[Trimatrik92]

I'm using Photoscan to make a 3D point cloud for a small object (35 mm * 35 mm) and trying to measure the roughness parameter of the surface. Should I use Agisoft lens for calibration? I am not sure when do I need to use camera calibration for making a 3D model. Is there any other way to calibrate camera while using Agisoft photoscan?
Thanks !

[Kiesel]

Hello trimatrik92,

Agisoft Metashape ( former Photoscan)  does camera calibration during alignment step and fine tuning this during optimization step, so you normally don't need extra calibration with normal cameras only for special measuring cameras.

Best regards
Kiesel