The lens is designed for use with almost all popular digital still cameras and HD video camcorders in the market by using either a Lens Holder Tube or an Adapter Ring or the both of them, which are available separately from us. DCR-732/DCR-731 lens broadens angle of view 37% more than original camera lens. The lens is made of high index optical glass elements which obtain the maximum resolution power of 375 lines/mm at center (MTF30%), There will be no reduction of light value when this conversion lens is attached on the camera's lens. DCR-732 comes with 3-adapter rings for 37mm, 43mm and 46mm filter sizes.