Camera and Photography Equipment Design G-Grip Mobile Phone Shutter Button by Greg Williams A Bluetooth shutter button in an ergonomically designed grip that enables you to hold and shoot one-handed like a traditional camera. The acclaimed photographer Greg has always taken photos with his phone but he has always been frustrated because of the fact that phones are very difficult to hold and operate at the same time. Hence he invented the G-Grip in order to be able to operate and handle his phone like a traditional camera. The G-Grip is really changing the way of mobile phone photography.