This MCEX-45G WR Macro Extension Tube reduces the minimum focusing distance of FUJIFILM G-mount lenses, allowing you to achieve a higher maximum magnification for close-up shooting. This 45mm-long tube gives macro-like performance to lenses that can't focus close enough otherwise, and the image quality of the original lens is preserved because the tube contains no optical components. Integrated contacts also maintain full autofocus and auto-exposure functionality.