A lens assembly for a smartphone and a method of use is disclosed. In a first aspect, a lens assembly comprises a rotatable wheel; wherein the wheel includes at least two lenses. The lens assembly includes a skin portion coupled to the rotatable wheel, wherein the skin portion is adjustable to cover a smartphone. The at least two lenses of the wheel are positioned such that when one of the lens of the assembly is properly positioned it covers the lens of a camera on the smartphone. In a second aspect the method comprises providing a lens assembly over a camera lens of a smartphone chassis. The lens assembly includes a plurality of lenses that are rotatable. The method includes ensuring that the center of the smartphone lens is congruent with the center of the selected lens of the plurality of lens by referencing at least two surfaces of the smartphone chassis.