Sea & Sea Focus Gear for the Canon 100mm f/2.8 USM Macro Auto-Focus Lens, Works with #56231 NX Custom Flat Port, #50261 SX Extension Ring & #51101 NX Zoom Port

This is a Sea and Sea focus gear to be used with the Canon EF 100mm f/2.8 Macro USM lens in the NX Custom Flat Port, along with the SX Extension Ring or in the NX Zoom Port.