The Aven Tools 26800B-461 0.5x Auxiliary Lens is suitable for use with DSZ, NSW, SPZH and SPZ series microscopes. The lens attaches to the microscope body to reduce magnification and to increase working distance and field of view. Please note that the 0.5x lens cannot be used with SPZ series bodies with stand P, PFM, PLED and Stand T, or with NSW series bodies with Stand T.