E-Mount to PL Mount Pro: A shimmable version of our popular Sony E-Mount lens mount adapter that enables mounting of PL mount lenses onto the Sony E-Mount cameras including the Sony FX9 and FS7mkII Additional Support: Use the 1/4-20 foot for additional support and combine with our Unified Baseplate (Sony FS7mkII, FX9) using the vertical support hole and the Unified Lens Adapter Support Kit Support Foot: If you are using the E-Mount to PL Mount Pro without a camera cage, you can use the included WC Lens Adapter Universal Support Foot to attach directly to the bottom of your camera and lens mount. This allows all the weight to be transferred from the lens mount to the bottom of the camera to avoid any flexing or damage that could occur when using heavier lenses Durable Construction: The PL Mount is made of aircraft grade aluminum and includes the PL port cap for keeping dust from drifting into your camera while the lens is removed Specifications: Weight: 251g (0.6 lbs) Dimensions: 85.1 x 81.8 x 48 mm (3.4 x 3.2 x 1.9 in)