An automated luminaire includes an array of light sources and a beam shaper. The array of light sources produces a first light beam. The beam shaper receives the first light beam and produces a second light beam. The beam shaper includes an array of convex lenslets and an array of concave lenslets. The convex and concave lenslets have non-circular shapes when viewed along an optical axis of the first light beam. The convex lenslets nest into the concave lenslets. The convex and concave lenslets rotate about an axis of rotation that is parallel to the optical axis and is located in the first light beam.