Nikon UR-5 Adapter Ring - Mount SX-1 to 60mm F2.8 MicroNikon UR 5 Adapter Ring Mount SX 1 to 60mm F2. 8 Micro Nikon SKU: 4914 Helix SKU: NK4914 Overview With the AF Micro Nikkor 60mm f 2. 8D, attach the Attachment Ring SX 1 to the lens using Adapter Ring UR 5 and Adapter Ring SX 1 72. Required for the SX 1 Attachment Ring to be mounted to the 60mm f 2. 8D AF Micro NIKKOR. The UR 5 Adapter Ring is required to mount the SX 1 Attachment Ring to the AF Micro NIKKOR 60mm f 2. 8D lens, for close up photography