MFT to PL Adapter Pro (GH3/GH4) is a shimmable version of our popular micro four thirds lens mount adapter that enables mounting of all PL mount lenses onto the Panasonic GH3 and GH4 cameras. In our factory, we set the flange focus to match a Panasonic GH4 camera. You only need to adjust the shims should you find that your camera is out of calibration. The adapter is shimmable by loosening six socket cap screws around the collar area, separating the two sections, and adding color coded shims of various thickness. Back focus should be checked using collimation tools or a wide lens focused to infinity. Mount includes a foot which attaches the PL mount directly to the base of the body and allows for attaching to a tripod directly eliminating strain on the camera. PL Cap included to prevent dust from entering sensor area when lens is not attached.