Rear plate for iPhone 15 Pro Max / 15 Pro Cage. Supports a 17 mm threaded lens to further enhance image quality in mobile photography. Secured with screws, it is interchangeable with the M-Mount rear plate of the original cage. Precisely designed holes do not obstruct the iPhone's camera lenses. The SmallRig 17 mm threaded lens rear mounting plate for iPhone 15 Pro Max / 15 Pro Cage 4394 is locked in place with a screw and slot and can be connected to a 17 mm threaded lens. It is interchangeable with the M-Mount rear plate of the original cage and is precisely hollowed out to fit perfectly with the iPhone's ultra-wide-angle lens.