15 kg of max load for a ball head this size, that's awesome. The Redged RP-2 was designed to get a really stabilized shot and was tested with an amazing force of 45 kg. The hydraulic ball head has a great locking force and adjustable friction. It doesn't matter how big your camera is or what size of lens you use, this ball head does the job. The high spheriform design makes the operation more smoothly and brings the camera exact in the right position.