An optical device for use with an imaging device for taking photographic
images of an object includes a light emitting element capable of emitting
light, and a lens arranged so as to direct light from the light emitting
element to illuminate the object. The light emitting element may include
at least two light emitting zones arranged so that light from the light
emitting zones can be directed from the lens in respective corresponding
spatial angles, and that the light emitting zones can be individually and
selectively controlled to emit a controllable intensity of light.