A universal adjustable lens adapter and rig system for smartphones, or similar electronic devices, that is modular in nature. The universal adjustable lens adapter includes a clamp mount assembly, a lens mount assembly, and a handle assembly. The clamp mount assembly is adapted to secure a smartphone, while the lens mount assembly is adapted to secure a camera lens. The clamp mount assembly includes a spring loaded first clamp and a fixed second clamp mounted to a clamp base and between which the smartphone is secured. Both the clamp mount assembly and the lens mount assembly are slidably connected to the handle assembly, such that the camera lens of any smartphone can be properly aligned with the camera lens attached to the lens mount assembly. Additionally, the handle assembly is adapted to manipulate and stabilize the smartphone while taking pictures.