The Custom 7-Lens Compact Prime CP.2 Set is a B&H Kit that brings together the full line of Zeiss CP.2 lenses for use on professional digital cinema cameras that utilize the PL mount. But the kit also takes advantage of the raison d'etre behind the CP.2's existence--mount interchangeability. So if your production calls for a Canon 5D Mark II to get that perfect lowlight shot, the included interchangeable mount kits let you convert any lens from PL to EF--effectively doubling the lens' versatility. The transport case, meanwhile, makes sure your glass remains safely stored and easily carried to and from set. Also included is a T6 torque wrench, for the purpose of changing the mounts on CP.2 cine lenses.