Take your action camera footage to the next level with the Ribcage Modified GoPro HERO4 Black from Back-Bone Gear. This HERO4 Black has been modified with an aluminum face plate and removable lens mount system, turning it into a compact, interchangeable lens camera. You can now select the right lens for a given shot and capture 4K Ultra HD (3840 x 2160) video at 30 fps, 2.7K video up to 60 fps, or 1080p video up to 120 fps.. The camera is compatible with widely available M12, CS-Mount, and C-Mount lenses, as well as other types of lenses via optional C-mount adapters. This lets you take advantage of all the benefits that professional lenses have to offer, including manual focus and iris control, macro shooting, increased depth-of-field, and optical zoom. The HERO4's original ultra-wide lens is included and has been modified for use on the Ribcage. Additionally, all accessories and cables originally supplied with the HERO4 Black are included, as well as a custom GOcase for storing and carrying the camera, optional lenses, and accessories.