1. A camera system comprising: an iris camera having an optical axis; a focus camera having an optical axis, wherein the optical axis of the focus camera is angularly offset from the optical axis of the iris camera; a lens; and a beam splitter arranged downstream of the lens, the beam splitter directing a first wavelength or range of wavelengths of incoming light to the focus camera and a second wavelength or range of wavelengths of incoming light to the iris camera.