As 3D photography is a specific type of film photography, most film users may not be aware of its existence. The market is lacking of 3D camera and its price in 2nd hand market is unacceptably high. We analysed the old stereo cameras and improved the design of ours. RETO3D is small and lightweight, affordable and easy-to-Use. It has a built-in flash and it’s film-saving! We are also developing an APP for users to make GIFs much easier, which resolves the complicated and time-consuming process of using PhotoShop.