An optical system for a camera, said optical system comprising an actuator, an actuation module, an optical module, and a frame at least partially surrounding said optical module, - said actuation module comprising a stationary threaded base element and a moveable dual-threaded connector, - said optical module comprising at least one lens and a moveable threaded support element housing said lens, - said actuation module and said optical module sharing a center axis, - said dual-threaded connector comprising a first connector thread and a second connector thread, said first connector thread and said second connector thread being oriented in opposite directions, said threaded base element comprising a thread engaging said first connector thread, said threaded support element comprising a thread engaging said second connector thread, - said actuator being configured to rotate said dual-threaded connector around said center axis in a first tangential direction and in an opposite, second tangential direction, - said frame interlocking with said threaded support element such that rotation of said threaded support element is prevented, allowing said optical module to be moved between a first end position and a second end position along said center axis in response to rotation of said dual-threaded connector in said tangential directions (D1, D2), wherein said first connector thread is a right-handed thread and said second connector thread is a left-handed thread, wherein said threaded base element, said dual-threaded connector, and said threaded support element are at least partially formed as a hollow cylinders, characterized in that said first connector thread being arranged on an inner surface of said dual-threaded connector cylinder, said second connector thread being arranged on an outer surface of said dual-threaded connector cylinder, and wherein the thread of said threaded base element is arranged on an outer surface of said threaded base element cylinder, and said thread of said threaded support element is arranged on an inner surface of said threaded support element cylinder. - said actuation module comprising a stationary threaded base element and a moveable dual-threaded connector, - said optical module comprising at least one lens and a moveable threaded support element housing said lens, - said actuation module and said optical module sharing a center axis, - said dual-threaded connector comprising a first connector thread and a second connector thread, said first connector thread and said second connector thread being oriented in opposite directions, said threaded base element comprising a thread engaging said first connector thread, said threaded support element comprising a thread engaging said second connector thread, said threaded base element comprising a thread engaging said first connector thread, said threaded support element comprising a thread engaging said second connector thread, - said actuator being configured to rotate said dual-threaded connector around said center axis in a first tangential direction and in an opposite, second tangential direction, - said frame interlocking with said threaded support element such that rotation of said threaded support element is prevented, allowing said optical module to be moved between a first end position and a second end position along said center axis in response to rotation of said dual-threaded connector in said tangential directions (D1, D2), wherein said first connector thread is a right-handed thread and said second connector thread is a left-handed thread, wherein said threaded base element, said dual-threaded connector, and said threaded support element are at least partially formed as a hollow cylinders, characterized in that said first connector thread being arranged on an inner surface of said dual-threaded connector cylinder, said second connector thread being arranged on an outer surface of said dual-threaded connector cylinder, and wherein the thread of said threaded base element is arranged on an outer surface of said threaded base element cylinder, and said thread of said threaded support element is arranged on an inner surface of said threaded support element cylinder.