About the product                  

                    The technical details behind this extension tube                    
The FujiFilm MCEX-45G WR Macro Extension Tube (45mm) - GFX series is an accessory that allows GFX100, GFX100S, GFX 50S, and GFX 50R users to shoot macro photographs with a higher magnification ratio up to 1:1. This extension tube lets photographers retain the optical performance of the lens while achieving beautiful macro shots.                    
Key Features                    
                    
45mm-Long Tube                    
Autofocus & Auto Exposure Functionality                    
Shortens Minimum Focus Distance of Lens                    
Increases Maximum Magnification                    
Top three reasons we think you will love this extension tube                    
                    
Easy to use                    
Makes close-up shots possible                    
Unaffected image quality