crab, all 139's and 189's can have up to 8 external cameras fitted. Standard fit with the external load kit is to have 2 cameras in the belly, one pointing at the hook in case of a hang up with an external load, and one pointing straight down where the external load would be. They are mounted under the belly in a pod on the right hand side of the belly near sliding door. Great picture with very high resolution. Very useful. Image can be brought up on either of the MFD's up front, or at a crew station, or the 5th screen (if fitted) or all of them.