1. An optical system comprising: a first camera arranged to have a first field of view, the first camera comprising: a light redirector configured to redirect light; a first lens assembly comprising a first lens and a first actuator for moving the first lens, the first lens assembly being disposed optically downstream of the light redirector; a first image sensor configured to receive light representing the first field of view, the first sensor being disposed optically downstream of both the light redirector and the first lens assembly; a second camera arranged to have a second field of view that at least partially overlaps with the first field of view, the second camera comprising: a second lens assembly comprising a second lens and a second actuator for moving the second lens; a second image sensor configured to receive light representing the second field of view, the second sensor being disposed optically downstream of the second lens assembly.