About the product                  

                    The technical details behind this adaptor ring                    
Ace those close up or macro shots with well-lit shooting environment by easily mounting your SX-1. This Nikon SY-1-67 Adapter Ring is an attachment ring that allows mounting of the R1 or R1C1's Close-Up Speedlight System’s SX-1 to a lens with 67mm filter thread.                    
Key Features                    
                    
Compatible with Close-Up Speedlight System's SX-1                    
For select lenses with 67mm thread                    
Attachment ring                    
67 mm filter thread                    
Top three reasons we think you will love this adaptor ring                    
                    
Works great                    
Easy to install                    
Perfect fit