Nikon Close-up Attachment Lens #2 provides an easy way to increase magnification. The #2 can be used alone or with #1, #0, 3T, 4T, 5T or 6T close-up attachment lenses. When attached, you can use automatic exposure control and TTL metering. The higher the close-up lens number, the closer you can focus. The attachment lens is equipped with Nikon Integrated Coating to improve contrast and reduce flare. The close-up lens #2 are recommended for lenses with a focal length to 55mm. This lens has a 52mm filter thread and 3.0 Diopter.