Abstract: Imaging systems and methods that enable multiple detectors to be used to capture multiple component images that can be fused to create a composite image of a scene, without introducing gaps in that composite image in areas corresponding to the boundaries of the detectors, are provided. The system includes imaging optics, such as a telescope, that at least in part define an optical path extending between an exit pupil and a focal plane. Field segmentation optics are located within the optical path, to create multiple, partially overlapping component images. At least one detector is provided to produce an image signal representing each of the component images. A composite image is then formed by registering and fusing the component images.