1. An imaging system, comprising: an imaging objective comprising: a first optical element having a noncircular aperture; an anamorphic optical system configured to receive light from the first optical element, wherein the anamorphic optical system increases a field of view of the imaging objective; and an image processor that generates a composite image of a scene based upon light received by the imaging objective at a plurality of different times, wherein the imaging objective has a different rotational orientation with respect to the scene at each of the different times, wherein the composite image comprises a first region and a second region, the second region having a higher spatial resolution than the first region.