Multiple usb webcams with their own calibration file

I launched two webcams with the usb_cam package (ROS Indigo). My launchfile is very simple: And the correct output is [ INFO] [1508058286.935975255]: using default calibration URL [ INFO] [1508058286.936074756]: camera calibration URL: file:///home/marcor/.ros/camera_info/head_camera.yaml [ INFO] [1508058286.936820975]: using default calibration URL [ INFO] [1508058286.936874935]: camera calibration URL: file:///home/marcor/.ros/camera_info/head_camera.yaml [ INFO] [1508058286.936916388]: Starting 'head_camera' (/dev/video0) at 960x720 via mmap (yuyv) at 30 FPS [ INFO] [1508058286.937664502]: Starting 'head_camera' (/dev/video1) at 960x720 via mmap (yuyv) at 30 FPS All works and webcams are correctly published. My question is: both camera are launched with the same calibration file. There is a way to set different calibraton .yaml files for every different camera? (I already have these files, left.yaml and right.yaml)