360-camera calibration with dual lens

I would like to know how to manually calibrate a 360 camera with dual lens.
Initially I tried calibrating with single lens with 21 different (rotation with various angles) images of chessboard. To plot a walkthrough of the video, how well do I need to calibrate it using dual lens.

Hello @saima, PIX4Dmapper supports any spherical camera that supports the equirectangular format. You don’t need to do any calibration for those cameras. If you are using a different camera, see the below article to see if your camera is supported or not.