Anyone who is struggling with the English manual, found in the Google search for "G-2D Bedienungsnleitung" quickly even a German guidance of an identical gimbal (not from Walkera) makes it to some practice possible the gimbal for the weight of other cameras like eg set the SJ4000. ;-) For SJ4000 you need then screw for example, only two slightly longer buy M2 and the cam fits in perfectly!