Macworld The iPhone’s video camera has gotten so good that it’s often used instead of a more expensive professional camera. Add the fact that an iPhone is much smaller–you can’t put most professional video cameras in a pocket–and the iPhone has become an attractive videographer’s tool. Traditional video cameras do have an advantage in that they offer more capabilities for fine-tuning. But the iPhone is trying to compete at that level, too, with Apple’s release of Final Cut Camera for iPhone. Packed into the app is the ability to tweak camera settings such as white balance, ISO, and shutter spe…